Rivers of Bangladesh





Brahmaputra River

The Brahmaputra (/ˌbrɑːməˈpuːtrə/ is one of the major rivers of Asia, a trans-boundary river which flows through China, India and Bangladesh. As such, it is known by various names in the region: Assamese: ব্ৰহ্মপুত্ৰ নদ ('নদnôd, masculine form of 'নদীnôdi "river") Brôhmôputrô [bɹɔɦmɔputɹɔ]; Sanskrit: ब्रह्मपुत्र, IAST: Brahmaputra; Tibetan: ཡར་ཀླུངས་གཙང་པོ་, Wylie: yar klung gtsang po Yarlung Tsangpo; simplified Chinese: 布拉马普特拉; traditional Chinese: 布拉馬普特拉河; pinyin: Bùlāmǎpǔtèlā Hé. It is also called Tsangpo-Brahmaputra (when referring to the whole river including the stretch within Tibet). The Manas River, which runs through Bhutan, joins it at Jogighopa, in India. It is the tenth largest river in the world by discharge, and the 15th longest.

With its origin in the Angsi glacier, located on the northern side of the Himalayas in Burang County of Tibet as the Yarlung Tsangpo River,it flows across southern Tibet to break through the Himalayas in great gorges (including the Yarlung Tsangpo Grand Canyon) and into Arunachal Pradesh (India).It flows southwest through the Assam Valley as Brahmaputra and south through Bangladesh as the Jamuna (not to be mistaken with Yamuna of India). In the vast Ganges Delta, it merges with the Padma, the popular name of the river Ganges in Bangladesh, and finally the Meghna and from here it is known as Meghna before emptying into the Bay of Bengal.
About 3,848 km (2,391 mi) long, the Brahmaputra is an important river for irrigation and transportation. The average depth of the river is 38 m (124 ft) and maximum depth is 120 m (380 ft). The river is prone to catastrophic flooding in the spring when Himalayas snow melts. The average discharge of the river is about 19,800 m3/s (700,000 cu ft/s),and floods can reach over 100,000 m3/s (3,500,000 cu ft/s). It is a classic example of a braided river and is highly susceptible to channel migration and avulsion.It is also one of the few rivers in the world that exhibit a tidal bore. It is navigable for most of its length.
The river drains the Himalaya east of the Indo-Nepal border, south-central portion of the Tibetan plateau above the Gangabasin, south-eastern portion of Tibet, the Patkai-Bum hills, the northern slopes of the Meghalaya hills, the Assam plains, and the northern portion of Bangladesh. The basin, especially south of Tibet, is characterized by high levels of rainfall. Kangchenjunga (8,586 m) is the only peak above 8,000 m, hence is the highest point within the Brahmaputra basin.

The Brahmaputra's upper course was long unknown, and its identity with the Yarlung Tsangpo was only established by exploration in 1884–86. This river is often called Tsangpo-Brahmaputra river.

Padma River


The Padma (Bengaliপদ্মা Pôdda) is a major river in Bangladesh. It is the main distributary of the Ganges, flowing generally southeast for 120 kilometres (75 mi) to its confluence with the Meghna River near the Bay of Bengal.The city of Rajshahi is situated on the banks of the river.

History
Etymology
The Padma, Sanskrit for lotus flower, is mentioned in Hindu mythology as a byname for the Goddess Lakshmi.
The name Padma is given to the lower part of the course of the Ganges (Ganga) below the point of the off-take of the Bhagirathi River(India), another Ganges River distributary also known as the Hooghly River. Padma had, most probably, flowed through a number of channels at different times. Some authors contend that each distributary of the Ganges in its deltaic part is a remnant of an old principal channel, and that starting from the western-most one, the Bhagirathi (in West Bengal, India), each distributary to the east marks a position of a newer channel than the one to the west of it.
Geographic effects
File:Padma River 1860.jpg
Padma River and boats (1860)
Eighteenth-century geographer James Rennell referred to a former course of the Ganges north of its present channel, as follows:
Appearances favour very strongly that the Ganges had its former bed in the tract now occupied by the lakes and morasses between Natore and Jaffiergunge, striking out of the present course by Bauleah to a junction of Burrrampooter or Megna near Fringybazar, where accumulation of two such mighty streams probably scooped out the present amazing bed of the Megna.
The places mentioned by Rennell proceeding from west to east are Rampur Boali, the headquarters of Rajshahi districtPuthia and Natore in the same district and Jaffarganj in the district of Dhaka. The place last named were shown in a map of the Mymensinghdistrict dated 1861, as a subdistrict (thana) headquarters, about 10 kilometres (6 mi) south-east of Bera Upazila police station. It is now known as Payla Jaffarganj and is close to Elachipur opposite Goalunda. According to Rennell's theory, therefore, the probable former course of the Ganges would correspond with that of the present channel of the Baral River.
Authorities agree that the Ganges has changed its course and that at different times, each of the distributaries might have been the carrier of its main stream.
The bed of the Padma is wide, and the river is split up into several channels flowing between constantly shifting sand banks and islands. During the rains the current is very strong and even steamers may find difficulty in making headway against it. It is navigable at all seasons of the year by steamers and country boats of all sizes and until recently ranked as one of the most frequented waterways in the world. It is spanned near Paksey by the great Hardinge Bridge over which runs one of the main lines of the Bangladesh Railway.
File:Hardinge Bridge Bangladesh (6).JPG
Hardinge Bridge in Bangladesh
Geography
The Padma enters Bangladesh from India near Nawabganj and meets the Jamuna (Bengaliযমুনা Jomuna) near Aricha and retains its name, but finally meets with the Meghna (Bengaliমেঘনা) near Chandpur and adopts the name "Meghna" before flowing into the Bay of Bengal.
Rajshahi, a major city in western Bangladesh, is situated on the north bank of the Padma.
The Ganges originates in the Gangotri Glacier of the Himalaya, and runs through India and Bangladesh to the Bay of Bengal. The Ganges enters Bangladesh at Shibganj in the district of Chapai Nababganj. West of Shibganj, the Ganges branches into two distributaries, the Bhagirathi and the Padma rivers. The Bhagirathi River, which flows southwards, is also known as the Ganga and was named the Hoogly or Hooghly River by the British.
Further downstream, in Goalando, 2,200 kilometres (1,400 mi) from the source, the Padma is joined by the Jamuna (Lower Brahmaputra) and the resulting combination flows with the name Padma further east, to Chandpur. Here, the widest river in Bangladesh, the Meghna joins the Padma, continuing as the Meghna almost in a straight line to the south, ending in the Bay of Bengal.
File:Sunset in Padma river near Faridpur.JPG
Sunset from Padma River
Pabna District
File:Padma river in summer.jpg
A view of Padma river in summer near Rajshahi
The Padma forms the whole of the southern boundary of the Pabna District for a distance of about 120 kilometres (75 mi).
Kushtia District
The Jalangi River is thrown off at the point where the mighty Padma touches the district at its most northernly corner, and flows along the northern border in a direction slightly southeast, until it leaves the district some miles to the east of Kushtia. It carries immense volumes of water and is very wide at places, constantly shifting its main channel, eroding vast areas on one bank, throwing chars on the other, giving rise to many disputes as to the possession of the chars and islands which are thrown up.
Rajshahi District
Rajshahi is the largest city among the cities which is situated on the bank of Padma river. It is the third largest city in Bangladesh. It is a major city in the north Bengal. Rajshahi has a beautifully decorated embankment of Padma. Rajshahi Collegiate School is one of the oldest schools in Indian Subcontinent, situated on Padma river bank. The school was endangered three times by the disintegration of the Padma river. Padma Food Garden, A.H.M. Kamaruzzaman Central Park and Zoo, Barokuthi Nandan Park, Muktamancha, and 'T' shaped embankment (Bengali: টি বাঁধ) are best tourist spot in Rajshahi which are situared on the bank of Padma river.
File:PADRAJ.jpg
Sunset from the river Padma during monsoon, Rajpara, Rajshahi
Infrastructure
File:Sky over river padma.jpg
Sky over river padma
Damming
After the construction of the Farakka Barrage on the Ganges River in West Bengal, the maximum flows in the Padma River were reduced significantly. The flow reduction caused many problems in Bangladesh, including the loss of fish species, the drying of Padma's distributaries, increased saltwater intrusion from the Bay of Bengal, and damage to the mangrove forests of the Sundarbans.
Padma Bridge
The Padma Bridge would be Bangladesh's largest, estimated at US$2.3 billion to finish. It was supposed to be open to the public in 2013. However, the future of the project became uncertain when in June 2012 the World Bank cancelled its $1.2 billion loan over corruption allegations. In June 2014, the government of Bangladesh, proceeding without the loan, hired a Chinese firm to construct the 6.15-kilometre (3.82 mi) main part of the bridge, and in October 2014, it hired a South Korean firm to supervise construction. Officials aim to finish the project by 2018.In 2009, government plans also included rail lines on both sides of the Padma with a connection via the new bridge.
 The Lalon Shah Bridge also crosses the Padma further upstream.Lalon Shah Bridge Bangladesh (4).JPG

Lalon Shah Bridge, also known as the Paksey Bridge, is a road bridge in Bangladesh over the river Padma, situated between Ishwardi Upazila of Pabna on the east, and Bheramara Upazila of Kushtia on the west.


Ganges
The Ganges (/ˈɡændʒiːz/ GAN-jeez), also known as Ganga (Hindustani: [ˈɡəŋɡaː]), is a trans-boundary river of Asia which flows through the nations of India and Bangladesh. The 2,525 km (1,569 mi) river rises in the eastern Himalayas in the Indian state of Uttarakhand, and flows south and east through the Gangetic Plain of North India. After entering West Bengal, it is divided into two rivers, one is Hugly river or Adi Ganga, flowing through several districts of West Bengal and finally submerged with Bay of Bengal near Ganga Sagar. The second part is named as Padma which flows into Bangladesh, where it empties into the Bay of Bengal. It is the third largest river in the world by discharge.
The Ganges is one of the most sacred rivers to Hindus, although it is not mentioned in either the Rigveda or the Ramayana.It is also a lifeline to millions of Indians who live along its course and depend on it for their daily needs. It is worshipped as the goddess Ganga in Hinduism.It has also been important historically, with many former provincial or imperial capitals (such as KannaujKampilya,  KaraPrayag or AllahabadKashiPataliputra or PatnaHajipurMungerBhagalpurMurshidabadBaharampurNabadwipSaptagramKolkata and Dhaka) located on its banks.
The Ganges is highly polluted. Pollution threatens not only humans, but also more than 140 fish species, 90 amphibian species and the endangered Ganges river dolphin. The levels of fecal coliform from human waste in the waters of the river near Varanasi are more than 100 times the Indian government's official limit. The Ganga Action Plan, an environmental initiative to clean up the river, has been a major failure thus far, due to corruption, technical expertise, poor environmental planning,and lack of support from religious authorities.

Geology

The Indian subcontinent lies atop the Indian tectonic plate, a minor plate within the Indo-Australian Plate. Its defining geological processes commenced seventy-five million years ago, when, as a part of the southern supercontinent Gondwana, it began a northeastwards drift—lasting fifty million years—across the then unformed Indian Ocean. The subcontinent's subsequent collision with the Eurasian Plate and subductionunder it, gave rise to the Himalayas, the planet's highest mountain ranges. In the former seabed immediately south of the emerging Himalayas, plate movement created a vast trough, which, having gradually been filled with sediment borne by the Indus and its tributaries and the Ganges and its tributaries, now forms the Indo-Gangetic Plain.
The Indo-Gangetic Plain is geologically known as a foredeep or foreland basin.

Hydrology

File:GangesValley&Plain.jpg
A 1908 map showing the course of the Ganges and its tributaries.
File:Ganga catchment.jpg
Catchment region of the Ganga
Major left-bank tributaries include Gomti (Gumti)Ghaghara (Gogra)Gandaki (Gandak), and Kosi (Kusi); major right-bank tributaries include Yamuna (Jumna)SonPunpunand Damodar.
The hydrology of the Ganges River is very complicated, especially in the Ganges Delta region. One result is different ways to determine the river's length, its discharge, and the size of its drainage basin.
File:River Ganga with Howrah bridge in the backdrop.jpg
The river Ganges at Kolkata, with Howrah Bridge in the background
File:Lower Ganges in Lakshmipur, Bangladesh.jpg
Lower Ganges in Lakshmipur, Bangladesh
File:River Ganga in Patna 201 (1).JPG
The Mahatma Gandhi Setubridge over the Ganges connecting the cities of Patna and Hajipur
The name Ganges is used for the river between the confluence of the Bhagirathi and Alaknanda rivers, in the Himalayas, and the India-Bangladesh border, near the Farakka Barrage and the first bifurcation of the river. The length of the Ganges is frequently said to be slightly over 2,500 km (1,600 mi) long, about 2,505 km (1,557 mi), to 2,525 km (1,569 mi), or perhaps 2,550 km (1,580 mi).  In these cases the river's source is usually assumed to be the source of the Bhagirathi River, Gangotri Glacier at Gomukh, and its mouth being the mouth of the Meghna River on the Bay of Bengal. Sometimes the source of the Ganges is considered to be at Haridwar, where its Himalayan headwater streams debouch onto the Gangetic Plain.
In some cases, the length of the Ganges is given for its Hooghly River distributary, which is longer than its main outlet via the Meghna River, resulting in a total length of about 2,620 km (1,630 mi), from the source of the Bhagirathi,[or 2,135 km (1,327 mi), from Haridwar to the Hooghly's mouth. In other cases the length is said to be about 2,240 km (1,390 mi), from the source of the Bhagirathi to the Bangladesh border, where its name changes to Padma.
For similar reasons, sources differ over the size of the river's drainage basin. The basin covers parts of four countries, IndiaNepalChina, and Bangladesh; eleven Indian states, Himachal PradeshUttarakhandUttar Pradesh, Madhya Pradesh, ChhattisgarhBiharJharkhandPunjab, Haryana, Rajasthan, West Bengal, and the Union Territory of Delhi.The Ganges basin, including the delta but not the Brahmaputra or Meghna basins, is about 1,080,000 km2 (420,000 sq mi), of which 861,000 km2 (332,000 sq mi) are in India (about 80%), 140,000 km2(54,000 sq mi) in Nepal (13%), 46,000 km2 (18,000 sq mi) in Bangladesh (4%), and 33,000 km2 (13,000 sq mi) in China (3%).Sometimes the Ganges and Brahmaputra–Meghna drainage basins are combined for a total of about 1,600,000 km2 (620,000 sq mi),or 1,621,000 km2(626,000 sq mi). The combined Ganges-Brahmaputra-Meghna basin (abbreviated GBM or GMB) drainage basin is spread across Bangladesh, Bhutan, India, Nepal, and China.
The Ganges basin ranges from the Himalaya and the Transhimalaya in the north, to the northern slopes of the Vindhya range in the south, from the eastern slopes of the Aravalli in the west to the Chota Nagpur plateau and the Sunderbans delta in the east. A significant portion of the discharge from the Ganges comes from the Himalayan mountain system. Within the Himalaya, the Ganges basin spreads almost 1,200 km from the Yamuna-Satluj divide along the Simla ridge forming the boundary with the Indus basin in the west to the Singalila Ridge along the Nepal-Sikkim border forming the boundary with the Brahmaputra basin in the east. This section of the Himalaya contains 9 of the 14 highest peaks in the world over 8,000m in height, including Mount Everest which is the high point of the Ganges basin. The other peaks over 8,000m in the basin are KangchenjungaLhotseMakaluCho OyuDhaulagiriManasluAnnapurna and Shishapangma. The Himalayan portion of the basin includes the south-eastern portion of the state of Himachal Pradesh, the entire state of Uttarakhand, the entire country of Nepal and the extreme north-western portion of the state of West Bengal.
The discharge of the Ganges also differs by source. Frequently, discharge is described for the mouth of the Meghna River, thus combining the Ganges with the Brahmaputra and Meghna. This results in a total average annual discharge of about 38,000 m3/s (1,300,000 cu ft/s), or 42,470 m3/s (1,500,000 cu ft/s). In other cases the average annual discharges of the Ganges, Brahmaputra, and Meghna are given separately, at about 16,650 m3/s (588,000 cu ft/s) for the Ganges, about 19,820 m3/s (700,000 cu ft/s) for the Brahmaputra, and about 5,100 m3/s (180,000 cu ft/s) for the Meghna.
File:Hardinge Bridge Bangladesh (4).JPG
Hardinge Bridge, Bangladesh, crosses the Ganges-Padma River. It is one of the key sites for measuring streamflow and discharge on the lower Ganges.
The maximum peak discharge of the Ganges, as recorded at Hardinge Bridge in Bangladesh, exceeded 70,000 m3/s (2,500,000 cu ft/s).The minimum recorded at the same place was about 180 m3/s (6,400 cu ft/s), in 1997.
The hydrologic cycle in the Ganges basin is governed by the Southwest Monsoon. About 84% of the total rainfall occurs in the monsoon from June to September. Consequently, streamflow in the Ganges is highly seasonal. The average dry season to monsoon discharge ratio is about 1:6, as measured at Hardinge Bridge. This strong seasonal variation underlies many problems of land and water resource development in the region.The seasonality of flow is so acute it can cause both drought and floods. Bangladesh, in particular, frequently experiences drought during the dry season and regularly suffers extreme floods during the monsoon.
In the Ganges Delta many large rivers come together, both merging and bifurcating in a complicated network of channels. The two largest rivers, the Ganges and Brahmaputra, both split into distributary channels, the largest of which merge with other large rivers before themselves joining. This current channel pattern was not always the case. Over time the rivers in Ganges Delta have changed course, sometimes altering the network of channels in significant ways.
Before the late 12th century the Bhagirathi-Hooghly distributary was the main channel of the Ganges and the Padma was only a minor spill-channel. The main flow of the river reached the sea not via the modern Hooghly River but rather by the Adi Ganga. Between the 12th and 16th centuries the Bhagirathi-Hooghly and Padma channels were more or less equally significant. After the 16th century the Padma grew to become the main channel of the Ganges.It is thought that the Bhagirathi-Hooghly became increasingly choked with silt, causing the main flow of the Ganges to shift to the southeast and the Padma River. By the end of the 18th century the Padma had become the main distributary of the Ganges. One result of this shift to the Padma was that the Ganges joined the Meghna and Brahmaputra rivers before emptying into the Bay of Bengal, together instead of separately. The present confluence of the Ganges and Meghna formed about 150 years ago.
Also near the end of the 18th century, the course of the lower Brahmaputra changed dramatically, altering its relationship with the Ganges. In 1787 there was a great flood on the Teesta River, which at the time was a tributary of the Ganges-Padma River. The flood of 1787 caused the Teesta to undergo a sudden change course (an avulsion), shifting east to join the Brahmaputra and causing the Brahmaputra to shift its course south, cutting a new channel. This new main channel of the Brahmaputra is called the Jamuna River. It flows south to join the Ganges-Padma. Since ancient times the main flow of the Brahmaputra was more easterly, passing by the city of Mymensingh and joining the Meghna River. Today this channel is a small distributary but retains the name Brahmaputra, sometimes Old Brahmaputra.The site of the old Brahmaputra-Meghna confluence, in the locality of Langalbandh, is still considered sacred by Hindus. Near the confluence is a major early historic site called Wari-Bateshwar.

History

File:The Birth of Gangā.jpg
The birth of Ganges
The Late Harappan period, about 1900–1300 BCE, saw the spread of Harappan settlement eastward from the Indus River basin to the Ganges-Yamuna doab, although none crossed the Ganges to settle its eastern bank. The disintegration of the Harappan civilisation, in the early 2nd millennium BC, marks the point when the centre of Indian civilisation shifted from the Indus basin to the Ganges basin. There may be links between the Late Harappan settlement of the Ganges basin and the archaeological culture known as "Cemetery H", the Indo-Aryan people, and the Vedic period.
This river is the longest in India.During the early Vedic Age of the Rigveda, the Indus and the Sarasvati River were the major sacred rivers, not the Ganges. But the later three Vedas gave much more importance to the Ganges. The Gangetic Plain became the centre of successive powerful states, from the Maurya Empire to the Mughal Empire.
The first European traveller to mention the Ganges was Megasthenes (ca. 350–290 BCE). He did so several times in his work Indica: "India, again, possesses many rivers both large and navigable, which, having their sources in the mountains which stretch along the northern frontier, traverse the level country, and not a few of these, after uniting with each other, fall into the river called the Ganges. Now this river, which at its source is 30 stadia broad, flows from north to south, and empties its waters into the ocean forming the eastern boundary of the Gangaridai, a nation which possesses a vast force of the largest-sized elephants." (Diodorus II.37) In the rainy season of 1809, the lower channel of the Bhagirathi, leading to Kolkata, had been entirely shut; but in the following year it opened again, and was nearly of the same size with the upper channel; both however suffered a considerable diminution, owing probably to the new communication opened below the Jalanggi on the upper channel.
In 1951 a water sharing dispute arose between India and East Pakistan (now Bangladesh), after India declared its intention to build the Farakka Barrage. The original purpose of the barrage, which was completed in 1975, was to divert up to 1,100 m3/s (39,000 cu ft/s) of water from the Ganges to the Bhagirathi-Hooghly distributary in order to restore navigability at the Port of Kolkata. It was assumed that during the worst dry season the Ganges flow would be around 1,400 to 1,600 m3/s (49,000 to 57,000 cu ft/s), thus leaving 280 to 420 m3/s (9,900 to 14,800 cu ft/s) for the then East Pakistan. East Pakistan objected and a protracted dispute ensued. In 1996 a 30-year treaty was signed with Bangladesh. The terms of the agreement are complicated, but in essence they state that if the Ganges flow at Farakka was less than 2,000 m3/s (71,000 cu ft/s) then India and Bangladesh would each receive 50% of the water, with each receiving at least 1,000 m3/s (35,000 cu ft/s) for alternating ten-day periods. However, within a year the flow at Farakka fell to levels far below the historic average, making it impossible to implement the guaranteed sharing of water. In March 1997, flow of the Ganges in Bangladesh dropped to its lowest ever, 180 m3/s (6,400 cu ft/s). Dry season flows returned to normal levels in the years following, but efforts were made to address the problem. One plan is for another barrage to be built in Bangladesh at Pangsha, west of Dhaka. This barrage would help Bangladesh better utilise its share of the waters of the Ganges.

Religious and cultural significance

Embodiment of sacredness

File:IndianWomanFloatingLampsGanges.jpg
Chromolithograph, "Indian woman floating lamps on the Ganges," by William Simpson, 1867.
The Ganges is a sacred river to Hindus along every fragment of its length. All along its course, Hindus bathe in its waters, paying homage to their ancestors and to their gods by cupping the water in their hands, lifting it and letting it fall back into the river; they offer flowers and rose petals and float shallow clay dishes filled with oil and lit with wicks (diyas). On the journey back home from the Ganges, they carry small quantities of river water with them for use in rituals (Ganga jal, literally water of the Ganges).
The Ganges is the embodiment of all sacred waters in Hindu mythology. Local rivers are said to be like the Ganges, and are sometimes called the local Ganges (Ganga). The Kaveri river of Karnataka and Tamil Nadu in Southern India is called the Ganges of the South; the Godavari, is the Ganges that was led by the sage Gautama to flow through Central India.  The Ganges is invoked whenever water is used in Hindu ritual, and is therefore present in all sacred waters. In spite of this, nothing is more stirring for a Hindu than a dip in the actual river, which is thought to remit sins, especially at one of the famous tirthas such as GangotriHaridwarPrayag, or Varanasi. The symbolic and religious importance of the Ganges is one of the few things that Hindu India, even its skeptics, are agreed upon.  Jawaharlal Nehru, a religious iconoclast himself, asked for a handful of his ashes to be thrown into the Ganges. "The Ganga," he wrote in his will, "is the river of India, beloved of her people, round which are intertwined her racial memories, her hopes and fears, her songs of triumph, her victories and her defeats. She has been a symbol of India's age-long culture and civilization, ever-changing, ever-flowing, and yet ever the same Ganga.

Avatarana or Descent of the Ganges

File:Ravi Varma-Descent of Ganga.jpg
Descent of Ganga – painting by Raja Ravi Varma
In late May or early June every year, Hindus celebrate the avatarana or descent of the Ganges from heaven to earth. The day of the celebration, Ganga Dashahara, the dashami (tenth day) of the waxing moon of the Hindu calendar month Jyestha, brings throngs of bathers to the banks of the river.A soak in the Ganges on this day is said to rid the bather of ten sins (dasha = Sanskrit "ten"; hara = to destroy) or alternatively, ten lifetimes of sins. Those who cannot journey to the river, however, can achieve the same results by bathing in any nearby body of water, which, for the true believer, in the Hindu tradition, takes on all the attributes of the Ganges.
The avatarana is an old theme in Hinduism with a number of different versions of the story.In the Vedic version, Indra, the Lord of Svarga(Heaven) slays the celestial serpent, Vritra, releasing the celestial liquid, the soma, or the nectar of the gods which then plunges to the earth and waters it with sustenance.
In the Vaishnava version of the myth, Indra has been replaced by his former helper Vishnu. The heavenly waters are now a river called Vishnupadi (padi: Skt. "from the foot of").As he completes his celebrated three strides—of earth, sky, and heaven—Vishnu as Vamana stubs his toe on the vault of heaven, punches open a hole, and releases the Vishnupadi, which until now had been circling around the cosmic egg within. Flowing out of the vault, she plummets down to Indra's heaven, where she is received by Dhruva, the once steadfast worshipper of Vishnu, now fixed in the sky as the polestar. Next, she streams across the sky forming the Milky Way and arrives on the moon. She then flows down earthwards to Brahma's realm, a divine lotus atop Mount Meru, whose petals form the earthly continents. There, the divine waters break up, with one stream, the Alaknanda, flowing down one petal into Bharatvarsha (India) as the Ganges.
It is Shiva, however, among the major deities of the Hindu pantheon, who appears in the most widely known version of the avatarana story. Told and retold in the Ramayana, the Mahabharata and several Puranas, the story begins with a sage, Kapila, whose intense meditation has been disturbed by the sixty thousand sons of King Sagara. Livid at being disturbed, Kapila sears them with his angry gaze, reduces them to ashes, and dispatches them to the netherworld. Only the waters of the Ganges, then in heaven, can bring the dead sons their salvation. A descendant of these sons, King Bhagiratha, anxious to restore his ancestors, undertakes rigorous penance and is eventually granted the prize of Ganga's descent from heaven. However, since her turbulent force would also shatter the earth, Bhagiratha persuades Shiva in his abode on Mount Kailash to receive Ganga in the coils of his tangled hair and break her fall. Ganga descends, is tamed in Shiva's locks, and arrives in the Himalayas. She is then led by the waiting Bhagiratha down into the plains at Haridwar, across the plains first to the confluence with the Yamuna at Prayag and then to Varanasi, and eventually to Ganga Sagar, where she meets the ocean, sinks to the netherworld, and saves the sons of Sagara.In honour of Bhagirath's pivotal role in the avatarana, the source stream of the Ganges in the Himalayas is named Bhagirathi, (Sanskrit, "of Bhagiratha").

Redemption of the Dead

File:HinduCremationVaranasi1903.jpg
Preparations for cremations on the banks of the Ganges in Varanasi, 1903. The dead are being bathed, wrapped in cloth and covered with wood. The photograph has caption, "Who dies in the waters of the Ganges obtains heaven."
Since Ganga had descended from heaven to earth, she is also the vehicle of ascent, from earth to heaven. As the Triloka-patha-gamini, (Skt. triloka= "three worlds", patha = "road", gamini = "one who travels") of the Hindu tradition, she flows in heavenearth, and the netherworld, and, consequently, is a "tirtha," or crossing point of all beings, the living as well as the dead. It is for this reason that the story of the avatarana is told at Shraddha ceremonies for the deceased in Hinduism, and Ganges water is used in Vedic rituals after death.Among all hymns devoted to the Ganges, there are none more popular than the ones expressing the worshipers wish to breathe his last surrounded by her waters.The Gangashtakam expresses this longing fervently:
O Mother! ... Necklace adorning the worlds!
Banner rising to heaven!
I ask that I may leave of this body on your banks,
Drinking your water, rolling in your waves,
Remembering your name, bestowing my gaze upon you.
No place along her banks is more longed for at the moment of death by Hindus than Varanasi, the Great Cremation Ground, or Mahashmshana Those who are lucky enough to die in Varanasi, are cremated on the banks of the Ganges, and are granted instant salvation.If the death has occurred elsewhere, salvation can be achieved by immersing the ashes in the Ganges. If the ashes have been immersed in another body of water, a relative can still gain salvation for the deceased by journeying to the Ganges, if possible during the lunar "fortnight of the ancestors" in the Hindu calendar month of Ashwin (September or October), and performing the Shraddha rites.
Hindus also perform pinda pradana, a rite for the dead, in which balls of rice and sesame seed are offered to the Ganges while the names of the deceased relatives are recited. Every sesame seed in every ball thus offered, according to one story, assures a thousand years of heavenly salvation for the each relative.Indeed, the Ganges is so important in the rituals after death that the Mahabharata, in one of its popular ślokas, says, "If only (one) bone of a (deceased) person should touch the water of the Ganges, that person shall dwell honoured in heaven. As if to illustrate this truism, the Kashi Khanda (Varanasi Chapter) of the Skanda Purana recounts the remarkable story of Vahika, a profligate and unrepentant sinner, who is killed by a tiger in the forest. His soul arrives before Yama, the Lord of Death, to be judged for the hereafter. Having no compensating virtue, Vahika's soul is at once dispatched to hell. While this is happening, his body on earth, however, is being picked at by vultures, one of whom flies away with a foot bone. Another bird comes after the vulture, and in fighting him off, the vulture accidentally drops the bone into the Ganges below. Blessed by this happenstance, Vahika, on his way to hell, is rescued by a celestial chariot which takes him instead to heaven.

The Purifying Ganges

File:Ganga Dashara, at Haridwar.jpg
Devotees taking holy bath during festival of Ganga Dashara at Har-ki-PauriHaridwar
Hindus consider the waters of the Ganges to be both pure and purifying Nothing reclaims order from disorder more than the waters of the Ganges. Moving water, as in a river, is considered purifying in Hindu culture because it is thought to both absorb impurities and take them away.The swiftly moving Ganges, especially in its upper reaches, where a bather has to grasp an anchored chain in order to not be carried away, is considered especially purifying. What the Ganges removes, however, is not necessarily physical dirt, but symbolic dirt; it wipes away the sins of the bather, not just of the present, but of a lifetime.
A popular paean to the Ganges is the Ganga Lahiri composed by a seventeenth century poet Jagannatha who, legend has it, was turned out of his Hindu Brahmin caste for carrying on an affair with a Muslim woman. Having attempted futilely to be rehabilitated within the Hindu fold, the poet finally appeals to Ganga, the hope of the hopeless, and the comforter of last resort. Along with his beloved, Jagannatha sits at the top of the flight of steps leading to the water at the famous Panchganga Ghat in Varanasi. As he recites each verse of the poem, the water of the Ganges rises up one step, until in the end it envelops the lovers and carry them away. "I come to you as a child to his mother," begins the Ganga Lahiri.
I come as an orphan to you, moist with love.
I come without refuge to you, giver of sacred rest.
I come a fallen man to you, uplifter of all.
I come undone by disease to you, the perfect physician.
I come, my heart dry with thirst, to you, ocean of sweet wine.
Do with me whatever you will.

Consort, Shakti, and Mother

Ganga is a consort to all three major male deities of Hinduism. As Brahma's partner she always travels with him in the form of water in his kamandalu (water-pot). She is also Vishnu's consort. Not only does she emanate from his foot as Vishnupadi in the avatarana story, but is also, with Sarasvati and Lakshmi, one of his co-wives.In one popular story, envious of being outdone by each other, the co-wives begin to quarrel. While Lakshmi attempts to mediate the quarrel, Ganga and Sarasvati, heap misfortune on each other. They curse each other to become rivers, and to carry within them, by washing, the sins of their human worshippers. Soon their husband, Vishnu, arrives and decides to calm the situation by separating the goddesses. He orders Sarasvati to become the wife of Brahma, Ganga to become the wife of Shiva, and Lakshmi, as the blameless conciliator, to remain as his own wife. Ganga and Sarasvati, however, are so distraught at this dispensation, and wail so loudly, that Vishnu is forced to take back his words. Consequently, in their lives as rivers they are still thought to be with him.
Shiva, as Gangadhara, bearing the Descent of the Ganges, as the goddess Parvati, the sage Bhagiratha, and the bull Nandi look on (circa 1740).
It is Shiva's relationship with Ganga, that is the best-known in Ganges mythology. Her descent, the avatarana is not a one time event, but a continuously occurring one in which she is forever falling from heaven into his locks and being forever tamed. Shiva, is depicted in Hindu iconography as Gangadhara, the "Bearer of the Ganga," with Ganga, shown as spout of water, rising from his hair.[71] The Shiva-Ganga relationship is both perpetual and intimate. Shiva is sometimes called Uma-Ganga-Patiswara ("Husband and Lord of Uma (Parvati) and Ganga"), and Ganga often arouses the jealousy of Shiva's better-known consort Parvati.
Ganga is the shakti or the moving, restless, rolling energy in the form of which the otherwise recluse and unapproachable Shiva appears on earth. As water, this moving energy can be felt, tasted, and absorbed. The war-god Skanda addresses the sage Agastya in the Kashi Khand of the Skanda Purana in these words:
One should not be amazed ... that this Ganges is really Power, for is she not the Supreme Shakti of the Eternal Shiva, taken in the form of water?
This Ganges, filled with the sweet wine of compassion, was sent out for the salvation of the world by Shiva, the Lord of the Lords.
Good people should not think this Triple-Pathed River to be like the thousand other earthly rivers, filled with water.
The Ganges is also the mother, the Ganga Mata (mata="mother") of Hindu worship and culture, accepting all and forgiving all. Unlike other goddesses, she has no destructive or fearsome aspect, destructive though she might be as a river in nature.  She is also a mother to other gods. She accepts Shiva's incandescent seed from the fire-god Agni, which is too hot for this world, and cools it in her waters. This union produces Skanda, or Kartikeya, the god of war.In the Mahabharata, she is the wife of Shantanu, and the mother of heroic warrior-patriarch, Bhishma. When Bhishma is mortally wounded in battle, Ganga comes out of the water in human form and weeps uncontrollably over his body.
The Ganges is the distilled lifeblood of the Hindu tradition, of its divinities, holy books, and enlightenment. As such, her worship does not require the usual rites of invocation (avahana) at the beginning and dismissal (visarjana) at the end, required in the worship of other gods. Her divinity is immediate and everlasting.

Ganges in classical Indian iconography

File:GangaBeshnagarBhopalStateCloseUp.jpg
Photograph (1875) of goddess Ganga (Gupta Period, 5th or 6th century CE) from Besnagar, Madhya Pradesh, now in Museum of Fine Arts, Boston

File:GangaElloraRameshwarCaveCloseUp.jpg
Goddess Ganga with left hand resting on a dwarf attendant's head from the Rameshwar TempleEllora Caves, Maharashtra. Date of Sculpture, 6th century 

File:GangaTerracottaAhichchhatra.JPG
The goddess Ganga stands on her mount, the makara, with a kumbha, a full pot of water, in her hand, while an attendant holds a parasol over her. Terracotta, Ahichatra, Uttar Pradesh, Gupta, 5th century, now in National Museum, New Delhi 

File:GoddessGangaInTribhangaWithRetinue.JPG
The goddess Ganga (right) in tribhangapose with retinue. Pratihara, 10th century, now in National Museum, New Delhi 
Early in ancient Indian culture, the river Ganges was associated with fecundity, its redeeming waters and its rich silt providing sustenance to all who lived along its banks. A counterpoise to the dazzling heat of the Indian summer, the Ganges came to be imbued with magical qualities and to be revered in anthropomorphic form. By the 5th century CE, an elaborate mythology surrounded the Ganges, now a goddess in her own right, and a symbol for all rivers of India. Hindu temples all over India had statues and reliefs of the goddess carved at their entrances, symbolically washing the sins of arriving worshippers and guarding the gods within.  As protector of the sanctum sanctorum, the goddess soon came to depicted with several characteristic accessories: the makara (a crocodile-like undersea monster, often shown with an elephant-like trunk), the kumbha (an overfull vase), various overhead parasol-like coverings, and a gradually increasing retinue of humans.
Central to the goddess's visual identification is the makara, which is also her vahana, or mount. An ancient symbol in India, it pre-dates all appearances of the goddess Ganga in art. The makara has a dual symbolism. On the one hand, it represents the life-affirming waters and plants of its environment; on the other, it represents fear, both fear of the unknown it elicits by lurking in those waters and real fear it instils by appearing in sight. The earliest extant unambiguous pairing of the makara with Ganga is at Udayagiri Caves in Central India (circa 400 CE). Here, in Cave V, flanking the main figure of Vishnu shown in his boar incarnation, two river goddesses, Ganga and Yamuna appear atop their respective mounts, makara and kurma (a turtle or tortoise).
The makara is often accompanied by a gana, a small boy or child, near its mouth, as, for example, shown in the Gupta period relief from Besnagar, Central India, in the left-most frame above. The gana represents both posterity and development (udbhava). The pairing of the fearsome, life-destroying makara with the youthful, life-affirming gana speaks to two aspects of the Ganges herself. Although she has provided sustenance to millions, she has also brought hardship, injury, and death by causing major floods along her banks. The goddess Ganga is also accompanied by a dwarf attendant, who carries a cosmetic bag, and on whom she sometimes leans, as if for support. (See, for example, frames 1, 2, and 4 above.)
The purna kumbha or full pot of water is the second most discernible element of the Ganga iconography. Appearing first also in the relief in Udayagiri Caves (5th century), it gradually appeared more frequently as the theme of the goddess matured. By the seventh century it had become an established feature, as seen, for example, the Dashavatara templeDeogarh, Uttar Pradesh (seventh century), the Trimurti temple, Badoli, Chittorgarh, Rajasthan, and at the Lakshmaneshwar templeKharodBilaspur, Chhattisgarh, (ninth or tenth century), and seen very clearly in frame 3 above and less clearly in the remaining frames. Worshipped even today, the full pot is emblematic of the formless Brahman, as well as of woman, of the womb, and of birth. Furthermore, the river goddesses Ganga and Saraswati were both born from Brahma's pot, containing the celestial waters.
In her earliest depictions at temple entrances, the goddess Ganga appeared standing beneath the overhanging branch of a tree, as seen as well in the Udayagiri caves. However, soon the tree cover had evolved into a chatra or parasol held by an attendant, for example, in the seventh-century Dasavatara temple at Deogarh. (The parasol can be clearly seen in frame 3 above; its stem can be seen in frame 4, but the rest has broken off.) The cover undergoes another transformation in the temple at Kharod, Bilaspur (ninth or tenth century), where the parasol is lotus-shaped, and yet another at the Trimurti temple at Badoli where the parasol has been replaced entirely by a lotus.
As the iconography evolved, sculptors in the central India especially were producing animated scenes of the goddess, replete with an entourage and suggestive of a queen en route to a river to bathe. A relief similar to the depiction in frame 4 above, is described in Pal 1997, p. 43 as follows:
A typical relief of about the ninth century that once stood at the entrance of a temple, the river goddess Ganga is shown as a voluptuously endowed lady with a retinue. Following the iconographic prescription, she stands gracefully on her composite makara mount and holds a water pot. The dwarf attendant carries her cosmetic bag, and a ... female holds the stem of a giant lotus leaf that serves as her mistress's parasol. The fourth figure is a male guardian. Often in such reliefs the makara's tail is extended with great flourish into a scrolling design symbolizing both vegetation and water.

Kumbh Mela

File:Kumbh Mela2001.JPG
A procession of Akharasmarching over a makeshift bridge over the Ganges River. Kumbh Mela at Allahabad, 2001.
Main article: Kumbh Mela
Kumbh Mela is a mass Hindu pilgrimage in which Hindus gather at the Ganges River. The normal Kumbh Mela is celebrated every 3 years, the Ardh (half) Kumbh is celebrated every six years at Haridwar and Prayag,  the Purna (complete) Kumbh takes place every twelve years at four places (Prayag (Allahabad), HaridwarUjjain, and Nashik). The Maha (great) Kumbh Mela which comes after 12 'Purna Kumbh Melas', or 144 years, is held at Prayag (Allahabad).
The major event of the festival is ritual bathing at the banks of the river. Other activities include religious discussions, devotional singing, mass feeding of holy men and women and the poor, and religious assemblies where doctrines are debated and standardized. Kumbh Mela is the most sacred of all the pilgrimages. Thousands of holy men and women attend, and the auspiciousness of the festival is in part attributable to this. The sadhus are seen clad in saffron sheets with ashes and powder dabbed on their skin per the requirements of ancient traditions. Some, called naga sanyasis, may not wear any clothes.

Irrigation

The Ganges and its all tributaries, especially the Yamuna, have been used for irrigation since ancient times. Dams and canals were common in gangetic plain by fourth century BCE. The Ganges-Brahmaputra-Meghna basin has a huge hydroelectric potential, on the order of 200,000 to 250,000 megawatts, nearly half of which could be easily harnessed. As of 1999, India tapped about 12% of the hydroelectric potential of the Ganges and just 1% of the vast potential of the Brahmaputra.

Canals

File:Headworks ganges canal haridwar1860.jpg
Head works of the Ganges canal in Haridwar (1860). photograph by Samuel Bourne.
Megasthenes, a Greek ethnographer who visited India during third century BCE when Mauryans ruled India described the existence of canals in the gangetic plain. Kautilya (also known as Chanakya), an advisor to Chandragupta Maurya, the founder of Maurya Empire, included the destruction of dams and levees as a strategy during war. Firuz Shah Tughlaq had many canals built, the longest of which, 240 km (150 mi), was built in 1356 on the Yamuna River. Now known as the Western Yamuna Canal, it has fallen into disrepair and been restored several times. The Mughal emperor Shah Jahan built an irrigation canal on the Yamuna River in the early 17th century. It fell into disuse until 1830, when it was reopened as the Eastern Yamuna Canal, under British control. The reopened canal became a model for the Upper Ganges Canal and all following canal projects.
File:GangesCanal2.jpg
The Ganges Canal highlighted in red stretching between its headworks off the Ganges River in Hardwar and its confluences with the Jumna River in Etawah and with the Ganges in Cawnpore (now Kanpur).
The first British canal in India—with no Indian antecedents—was the Ganges Canal built between 1842 and 1854. Contemplated first by Col. John Russell Colvin in 1836, it did not at first elicit much enthusiasm from its eventual architect Sir Proby Thomas Cautley, who balked at idea of cutting a canal through extensive low-lying land in order to reach the drier upland destination. However, after the Agra famine of 1837–38, during which the East India Company's administration spent Rs. 2,300,000 on famine relief, the idea of a canal became more attractive to the Company's budget-conscious Court of Directors. In 1839, the Governor General of IndiaLord Auckland, with the Court's assent, granted funds to Cautley for a full survey of the swath of land that underlay and fringed the projected course of the canal. The Court of Directors, moreover, considerably enlarged the scope of the projected canal, which, in consequence of the severity and geographical extent of the famine, they now deemed to be the entire Doab region.
The enthusiasm, however, proved to be short lived. Auckland's successor as Governor General, Lord Ellenborough, appeared less receptive to large-scale public works, and for the duration of his tenure, withheld major funds for the project. Only in 1844, when a new Governor-General, Lord Hardinge, was appointed, did official enthusiasm and funds return to the Ganges canal project. Although the intervening impasse had seemingly affected Cautley's health and required him to return to Britain in 1845 for recuperation, his European sojourn gave him an opportunity to study contemporary hydraulic works in the United Kingdom and Italy. By the time of his return to India even more supportive men were at the helm, both in the North-Western Provinces, with James Thomason as Lt. Governor, and in British India with Lord Dalhousie as Governor-General. Canal construction, under Cautley's supervision, now went into full swing. A 560 km (350 mi) long canal, with another 480 km (300 mi) of branch lines, eventually stretched between the headworks in Hardwar, splitting into two branches below Aligarh, and its two confluences with the Yamuna (Jumna in map) mainstem in Etawah and the Ganges in Kanpur (Cawnpore in map). The Ganges Canal, which required a total capital outlay of £2.15 million, was officially opened in 1854 by Lord Dalhousie. According to historian Ian Stone:
It was the largest canal ever attempted in the world, five times greater in its length than all the main irrigation lines of Lombardy and Egypt put together, and longer by a third than even the largest USA navigation canal, the Pennsylvania Canal.

Dams and barrages

A major barrage at Farakka was opened on 21 April 1975, It is located close to the point where the main flow of the river enters Bangladesh, and the tributary Hooghly (also known as Bhagirathi) continues in West Bengal past Kolkata. This barrage, which feeds the Hooghly branch of the river by a 42 km (26 mi) long feeder canal, and its water flow management has been a long-lingering source of dispute with Bangladesh. Indo-Bangladesh Ganges Water Treaty signed in December 1996 addressed some of the water sharing issues between India and Bangladesh.
Tehri Dam was constructed on Bhagirathi River, tributary of the Ganges. It is located 1.5 km downstream of Ganesh Prayag, the place where Bhilangana meets Bhagirathi. Bhagirathi is called Ganges after Devprayag. Construction of the dam in an earthquake prone area was controversial.
Bansagar Dam was built on the Son River, a tributary of the Ganges for both irrigation and hydroelectric power generation.

Economy

File:A girl selling plastic containers for carrying Ganges water, Haridwar.jpg
A girl selling plastic containers for carrying Ganges water, Haridwar.
The Ganges Basin with its fertile soil is instrumental to the agricultural economies of India and Bangladesh. The Ganges and its tributaries provide a perennial source of irrigation to a large area. Chief crops cultivated in the area include rice, sugarcanelentilsoil seeds, potatoes, and wheat. Along the banks of the river, the presence of swamps and lakes provide a rich growing area for crops such as legumes, chillies, mustard, sesame, sugarcane, and jute. There are also many fishing opportunities along the river, though it remains highly polluted. Also the major industrial towns of UnnaoKanpur, situated on the banks of the river with the predominance of tanning industries add to the pollution.

Tourism

Tourism is another related activity. Three towns holy to Hinduism—Haridwar, Prayag (Allahabad), and Varanasi—attract thousands of pilgrims to its waters to take a dip in the Ganges, which is believed to cleanse oneself of sins and help attain salvation. The rapids of the Ganges also are popular for river rafting, attracting adventure seekers in the summer months. Also, several cities such as Kanpur, Kolkata and Patna have developed riverfront walkways along the banks to attract tourists.

Ecology and environment

File:Bangladesh tmo 2011313.jpg
Ganges from Space
Human development, mostly agriculture, has replaced nearly all of the original natural vegetation of the Ganges basin. More than 95% of the upper Gangetic Plain has been degraded or converted to agriculture or urban areas. Only one large block of relatively intact habitat remains, running along the Himalayan foothills and including Rajaji National ParkJim Corbett National Park, and Dudhwa National Park. As recently as the 16th and 17th centuries the upper Gangetic Plain harboured impressive populations of wild Asian elephants (Elephas maximus), Bengal tigers (Panthera t. tigris), Indian rhinoceros (Rhinoceros unicornis), gaurs (Bos gaurus), barasinghas (Rucervus duvaucelii), sloth bears(Melursus ursinus) and Indian lions (Panthera leo persica).] In the 21st century there are few large wild animals, mostly deer, wild boarswildcats, and small numbers of Indian wolvesgolden jackals, and red and Bengal foxes. Bengal tigers survive only in the Sundarbans area of the Ganges Delta. The Sundarbands freshwater swamp ecoregion, however, is nearly extinct. Threatened mammals in the upper Gangetic Plain include the tiger, elephant, sloth bear, and four-horned antelope (Tetracerus quadricornis).
File:Florican, 1781.jpg
Lesser florican (Sypheotides indicus)
Many types of birds are found throughout the basin, such as mynaPsittacula parakeets, crowskitespartridges, and fowlsDucks and snipesmigrate across the Himalayas during the winter, attracted in large numbers to wetland areas. There are no endemic birds in the upper Gangetic Plain. The great Indian bustard (Ardeotis nigriceps) and lesser florican (Sypheotides indicus) are considered globally threatened.
The natural forest of the upper Gangetic Plain has been so thoroughly eliminated it is difficult to assign a natural vegetation type with certainty. There are a few small patches of forest left, and they suggest that much of the upper plains may have supported a tropical moist deciduous forest with sal (Shorea robusta) as a climax species.
A similar situation is found in the lower Gangetic Plain, which includes the lower Brahmaputra River. The lower plains contain more open forests, which tend to be dominated by Bombax ceiba in association with Albizzia proceraDuabanga grandiflora, and Sterculia vilosa. There are early seral forest communities that would eventually become dominated by the climax species sal (Shorea robusta), if forest succession was allowed to proceed. In most places forests fail to reach climax conditions due to human causes. The forests of the lower Gangetic Plain, despite thousands of years of human settlement, remained largely intact until the early 20th century. Today only about 3% of the ecoregion is under natural forest and only one large block, south of Varanasi, remains. There are over forty protected areas in the ecoregion, but over half of these are less than 100 square kilometres (39 sq mi). The fauna of the lower Gangetic Plain is similar to the upper plains, with the addition of a number of other species such as the smooth-coated otter (Lutrogale perspicillata) and the large Indian civet (Viverra zibetha).

Fish

File:Catla catla India.jpg
The catla (Catla catla) is one of the Indian carp species that support major fisheries in the Ganges
It has been estimated that about 350 fish species live in the entire Ganges drainage, including several endemics.] In a major 2007–2009 study of fish in the Ganges basin (including the river itself and its tributaries, but excluding the Brahmaputra and Meghna basins), a total of 143 fish species were recorded, including 10 non-native introduced species. The most diverse orders are Cypriniformes (barbs and allies), Siluriformes (catfish) and Perciformes (perciform fish), each comprising about 50%, 23% and 14% of the total fish species in the drainage.
There are distinct differences between the different sections of the river basin, but Cyprinidae is the most diverse throughout. In the upper section (roughly equalling the basin parts in Uttarakhand) more than 50 species have been recorded and Cyprinidae alone accounts for almost 80% those, followed by Balitoridae (about 15.6%) and Sisoridae (about 12.2%).Sections of the Ganges basin at altitudes above 2,400–3,000 m (7,900–9,800 ft) above sea level are generally without fish. Typical genera approaching this altitude are SchizothoraxTorBariliusNemacheilus and Glyptothorax. About 100 species have been recorded from the middle section of the basin (roughly equalling the sections in Uttar Pradesh and parts of Bihar) and more than 55% of these are in family Cyprinidae, followed by Schilbeidae (about 10.6%) and Clupeidae (about 8.6%). The lower section (roughly equalling the basin in parts of Bihar and West Bengal) includes major floodplains and is home to almost 100 species. About 46% of these are in the family Cyprinidae, followed by Schilbeidae (about 11.4%) and Bagridae (about 9%).
The Ganges basin supports major fisheries, but these have declined in recent decades. In the Allahabad region in the middle section of the basin, catches of carp fell from 424.91 metric tons in 1961–1968 to 38.58 metric tons in 2001–2006, and catches of catfish fell from 201.35 metric tons in 1961–1968 to 40.56 metric tons in 2001–2006. In the Patnaregion in the lower section of the basin, catches of carp fell from 383.2 metric tons to 118, and catfish from 373.8 metric tons to 194.48. Some of the fish commonly caught in fisheries include catla (Catla catla), golden mahseer (Tor putitora), tor mahseer (Tor tor), rohu (Labeo rohita), walking catfish (Clarias batrachus), pangas catfish (Pangasius pangasius), goonch catfish (Bagarius), snakeheads (Channa), bronze featherback (Notopterus notopterus) and milkfish (Chanos chanos).
The Ganges basin is home to about 30 fish species that are listed as threatened with the primary issues being overfishing (sometimes illegal), pollution, water abstraction, siltationand invasive species. Among the threatened species is the critically endangered Ganges shark (Glyphis gangeticus). Several fish species migrate between different sections of the river, but these movements may be prevented by the building of dams.

Crocodilians and turtles

File:Gavialis gangeticus, ZOO Praha 045.jpg
The threatened gharial (Gavialis gangeticus) is a large fish-eating crocodilian that is harmless to humans[112]
The main sections of the Ganges River are home to the gharial (Gavialis gangeticus) and mugger crocodile (Crocodylus palustris), and the delta is home to the saltwater crocodile (C. porosus). Among the numerous aquatic and semi-aquatic turtles in the Ganges basin are the northern river terrapin (Batagur baska; only in the lowermost section of the basin), three-striped roofed turtle (B. dhongoka), red-crowned roofed turtle (B. kachuga), black pond turtle (Geoclemys hamiltonii), Brahminy river turtle (Hardella thurjii), Indian black turtle (Melanochelys trijuga), Indian eyed turtle (Morenia petersi), brown roofed turtle (Pangshura smithii), Indian roofed turtle (Pangshura tecta), Indian tent turtle(Pangshura tentoria), Indian flapshell turtle (Lissemys punctata), Indian narrow-headed softshell turtle (Chitra indica), Indian softshell turtle(Nilssonia gangetica), Indian peacock softshell turtle (N. hurum) and Cantor's giant softshell turtle (Pelochelys cantorii; only in the lowermost section of Ganges basin).  Most of these are seriously threatened.

Ganges river dolphin

File:GangeticDolphin.jpg
The Gangetic dolphin in a sketch by Whymper and P. Smit, 1894.
The river's most famed fauna is the freshwater dolphin Platanista gangetica gangetica, the Ganges river dolphin, recently declared India's national aquatic animal.[
This dolphin used to exist in large schools near to urban centres in both the Ganges and Brahmaputra rivers, but is now seriously threatened by pollution and dam construction. Their numbers have now dwindled to a quarter of their numbers of fifteen years before, and they have become extinct in the Ganges' main tributaries.  A recent survey by the World Wildlife Fund found only 3,000 left in the water catchment of both river systems.[
The Ganges river dolphin is one of only five true freshwater dolphins in the world. The other four are the baiji (Lipotes vexillifer) of the Yangtze River in China, now likely extinct; the Indus river dolphin of the Indus River in Pakistan; the Amazon river dolphin of the Amazon River in South America; and the Araguaian river dolphin (not considered a separate species until 2014) of the Araguaia–Tocantins basin in Brazil. There are several marine dolphins whose ranges include some freshwater habitats, but these five are the only dolphins who live only in freshwater rivers and lakes.

Effects of climate change

The Tibetan Plateau contains the world's third-largest store of ice. Qin Dahe, the former head of the China Meteorological Administration, said that the recent fast pace of melting and warmer temperatures will be good for agriculture and tourism in the short term; but issued a strong warning:
Temperatures are rising four times faster than elsewhere in China, and the Tibetan glaciers are retreating at a higher speed than in any other part of the world.... In the short term, this will cause lakes to expand and bring floods and mudflows... In the long run, the glaciers are vital lifelines for Asian rivers, including the Indus and the Ganges. Once they vanish, water supplies in those regions will be in peril.
In 2007, the Intergovernmental Panel on Climate Change (IPCC), in its Fourth Report, stated that the Himalayan glaciers which feed the river, were at risk of melting by 2035. The IPCC has now withdrawn that prediction, as the original source admitted that it was speculative and the cited source was not a peer reviewed finding. In its statement, the IPCC stands by its general findings relating to the Himalayan glaciers being at risk from global warming (with consequent risks to water flow into the Gangetic basin).

Pollution and environmental concerns

Pollution of the Ganges
File:Clothing by the river.jpg
People bathing and washing clothes in the Ganges in Varanasi.
The Ganges suffers from extreme pollution levels, caused by the 400 million people who live close to the river. Sewage from many cities along the river's course, industrial waste and religious offerings wrapped in non-degradable plastics add large amounts of pollutants to the river as it flows through densely populated areas. The problem is exacerbated by the fact that many poorer people rely on the river on a daily basis for bathing, washing, and cooking. The World Bank estimates that the health costs of water pollution in India equal three percent of India's GDP. It has also been suggested that eighty percent of all illnesses in India and one-third of deaths can be attributed to water-borne diseases.
Varanasi, a city of one million people that many pilgrims visit to take a "holy dip" in the Ganges, releases around 200 million litres of untreated human sewage into the river each day, leading to large concentrations of faecal coliform bacteria.  According to official standards, water safe for bathing should not contain more than 500 faecal coliforms per 100ml, yet upstream of Varanasi's ghats the river water already contains 120 times as much, 60,000 faecal coliform bacteria per 100 ml.
After the cremation of the deceased at Varanasi's ghats the bones and ashes are thrown into the Ganges. However, in the past thousands of uncremated bodies were thrown into the Ganges during cholera epidemics, spreading the disease. Even today, holy men, pregnant women, people with leprosy/chicken pox, people who had been bitten by snakes, people who had committed suicide, the poor, and children under 5 are not cremated at the ghats but are floated free to decompose in the waters. In addition, those who cannot afford the large amount of wood needed to incinerate the entire body, leave behind a lot of half burned body parts.
After passing through Varanasi, and receiving 32 streams of raw sewage from the city, the concentration of fecal coliforms in the river's waters rises from 60,000 to 1.5 million, with observed peak values of 100 million per 100 ml. Drinking and bathing in its waters therefore carries a high risk of infection.
Between 1985 and 2000, Rs. 10 billion, around US$226 million, or less than 4 cents per person per year, were spent on the Ganga Action Plan, an environmental initiative that was "the largest single attempt to clean up a polluted river anywhere in the world." The Ganga Action Plan has been described variously as a "failure", a "major failure".
According to one study,
The Ganga Action Plan, which was taken on priority and with much enthusiasm, was delayed for two years. The expenditure was almost doubled. But the result was not very appreciable. Much expenditure was done over the political propaganda. The concerning governments and the related agencies were not very prompt to make it a success. The public of the areas was not taken into consideration. The releasing of urban and industrial wastes in the river was not controlled fully. The flowing of dirty water through drains and sewers were not adequately diverted. The continuing customs of burning dead bodies, throwing carcasses, washing of dirty clothes by washermen, and immersion of idols and cattle wallowing were not checked. Very little provision of public latrines was made and the open defecation of lakhs of people continued along the riverside. All these made the Action Plan a failure.
The failure of the Ganga Action Plan, has also been variously attributed to "environmental planning without proper understanding of the human–environment interactions,” Indian "traditions and beliefs,"corruption and a lack of technical knowledge" and "lack of support from religious authorities."
In December 2009 the World Bank agreed to loan India US$1 billion over the next five years to help save the river. According to 2010 Planning Commission estimates, an investment of almost Rs. 70 billion (Rs. 70 billion, approximately US$1.5 billion) is needed to clean up the river.
In November 2008, the Ganges, alone among India's rivers, was declared a "National River", facilitating the formation of a National Ganga River Basin Authority that would have greater powers to plan, implement and monitor measures aimed at protecting the river.
In July 2014, the Government of India announced an integrated Ganges-development project titled Namami Ganga and allocated ₹2,037 crore for this purpose.
In March 2017 the High Court of Uttarakhand declared the Ganges River a legal "person", in a move that according to one newspaper, "could help in efforts to clean the pollution-choked rivers." As of 6 April 2017, the ruling has been commented on in Indian newspapers to be hard to enforce, that experts do not anticipate immediate benefits, that the ruling is "hardly game changing," that experts believe "any follow-up action is unlikely,"] and that the "judgment is deficient to the extent it acted without hearing others (in states outside Uttarakhand) who have stakes in the matter."
The incidence of water-borne and enteric diseases—such as gastrointestinal disease, cholera, dysenteryhepatitis A and typhoid—among people who use the river's waters for bathing, washing dishes and brushing teeth is high, at an estimated 66% per year.
Recent studies by Indian Council of Medical Research (ICMR) say that the river is so full of killer pollutants that those living along its banks in Uttar Pradesh, Bihar and Bengal are more prone to cancer than anywhere else in the country. Conducted by the National Cancer Registry Programme under the ICMR, the study throws up shocking findings indicating that the river is thick with heavy metals and lethal chemicals that cause cancer. According to Deputy Director General of NCRP A. Nandkumar, the incidence of cancer was highest in the country in areas drained by the Ganges and stated that the problem would be studied deeply and with the findings presented in a report to the health ministry.

Water shortages

Along with ever-increasing pollution, water shortages are getting noticeably worse. Some sections of the river are already completely dry. Around Varanasi, the river once had an average depth of 60 metres (200 ft), but in some places, it is now only 10 metres (33 ft).
To cope with its chronic water shortages, India employs electric groundwater pumps, diesel-powered tankers, and coal-fed power plants. If the country increasingly relies on these energy-intensive short-term fixes, the whole planet's climate will bear the consequences. India is under enormous pressure to develop its economic potential while also protecting its environment—something few, if any, countries have accomplished. What India does with its water will be a test of whether that combination is possible.


Meghna River
The Meghna River (Bengaliমেঘনা নদী) is one of the most important rivers in Bangladesh, one of the three that forms the Ganges Delta, the largest delta on earth, which fans out to the Bay of Bengal. A part of the Surma-Meghna River System, Meghna is formed inside Bangladesh in Kishoreganj District above the town of Bhairab Bazar by the joining of the Surma and the Kushiyara, both of which originate in the hilly regions of eastern India as the Barak River. The Meghna meets its major tributary, the Padma, in Chandpur District. Other major tributaries of the Meghna include the Dhaleshwari, the Gumti, and the Feni. The Meghna empties into the Bay of Bengal in Bhola District via four principal mouths, named Tetulia (Ilsha), Shahbazpur, Hatia, and Bamni.
File:Boat in meghna river.JPG
Boat in Meghna River
The Meghna is the widest river among those that flow completely inside the boundaries of Bangladesh. At a point near Bhola, Meghna is 12 km wide. In its lower reaches this river's path is almost perfectly straight.

Course

The Meghna is formed inside Bangladesh by the joining of the Surma and Kushiyara rivers originating from the hilly regions of eastern India. Down to Chandpur, Meghna is hydrographically referred to as the Upper Meghna. After the Padma joins, it is referred to as the Lower Meghna.
Near Muladhuli in Barisal district, the Safipur River is an offshoot of the Surma that creates one of the main rivers in South Bengal. 1.5 km wide, this river is one of the widest in the country as well.
At Chatalpar of Brahmanbaria District, the river Titas emerges from Meghna and after circling two large bends by a distance of about 150 mile, falls into the Meghna again near Nabinagar Upazila. The Titas forms as a single stream but braids into two distinct streams which remain separate before re-joining the Meghna.
File:MeghnaRiver.jpg
A view of the Meghna from a bridge
In Daudkandi, (Comilla District), the Meghna is joined by the Gumti River, which increases the Meghna's waterflow considerably. The pair of bridges over the Meghna and Gumti are two of the country's largest bridges.
Meghna is again reinforced by the Dhaleshwari before Chandpur. Further down, the Padma River- the largest distributary of the Ganges in Bangladesh, along with the Jamuna River- the largest distributary of the Brahmaputra, join with the Meghna in Chandpur District, resulting in the Lower Meghna.
When the brown and hazy water of the Padma mix with the clear water of the Upper Meghna, the two streams do not mix but flow in parallel down to the sea - making half of the river clear and the other half brown. This peculiarity of the river is always a great attraction for people.
After Chandpur, the combined flow of the PadmaJamuna and Meghna moves down to the Bay of Bengal in an almost straight line, braiding occasionally into a number of riverines including the Pagli, Katalia, Dhonagoda, Matlab and Udhamodi. All of these rivers rejoin the Meghna at different points downstream.
Near Bhola, just before flowing into the Bay of Bengal, the river again divides into two main streams in the Ganges delta and separates an island from both sides of the mainland. The western stream is called Ilsha while the eastern one is called Bamni.


Jamuna River (Bangladesh)
The Jamuna River (Bengaliযমুনা Jomuna) is one of the three main rivers of Bangladesh. It is the main distributary channel of the Brahmaputra River as it flows from India to Bangladesh. The Jamuna flows south and joins the Padma River (Pôdda), near Goalundo Ghat, before meeting the Meghna River near Chandpur. It then flows into the Bay of Bengal as the Meghna River. It is the National river of Bangladesh.
The Brahmaputra-Jamuna is a classic example of a braided river and is highly susceptible to channel migration and avulsion.[1] It is characterised by a network of interlacing channels with numerous sandbars enclosed between them. The sandbars, known in Bengali as chars, do not occupy a permanent position. The river deposits them in one year, very often to be destroyed later, and redeposits them in the next rainy season. The process of bank and deposit erosion together with redeposition has been going on continuously,[2] making it difficult to precisely demarcate the boundary between the district of Pabna on one side and the districts of Mymensingh Tangail and Dhaka on the other. The breaking of a char or the emergence of a new one is also a cause of much violence and litigation. The confluence of the Jamuna River and Padma River is unusually unstable and has been shown to have migrated southeast by over fourteen kilometres between 1972 and 2014.

Course

In Bangladesh, the Brahmaputra is joined by the Teesta River (or Tista), one of its largest tributaries. The Teesta earlier ran due south from Jalpaiguri in three channels, namely, the Karatoya to the east, the Punarbhaba in the west and the Atrai in the centre. The three channels possibly gave the name to the river as Trisrota "possessed of three streams" which has been shortened and corrupted to Teesta. Of these three, the Punarbhaba joined the Mahananda. The Atrai passing through a vast marshy area known as Chalan Beel joined the Karatoya and the united stream joined the Padma (Ganges) near Jafarganj. In the destructive floods of 1787, the Teesta river forsook its old channel and rushing south-east it joined the Brahmaputra.
James Rennell made a survey between 1764 and 1777 and his maps are one of the earliest authentic maps of Bengal in existence. In these maps Teesta is shown as flowing through North Bengal in several branches — Punarbhaba, Atrai, Karatoya, etc. All these streams combined lower down with the Mahananda, now the westernmost river in North Bengal, and taking the name of Hoorsagar finally discharged into the Ganges at Jafarganj, near modern Goalundo. The Hoorsagar river is still in existence, being the combined outfall of the Baral, a spill channel of the Ganges, the Atrai, the Jamuna or Jamuneswari (not the main Jamuna through which the Brahmaputra now flows), and the Karatoya, but instead of falling into the Ganges, it falls into the main Jamuna, a few miles above its confluence with the Padma at Goalundo.
James Rennell's 1776 map shows the Brahmaputra's main flow through Jamalpur and Mymensinghand a much narrower Jamuna or Jamuneswari before an earthquake in 1762, and the Teesta R. flowing in 3 channels to the Ganges before a flood in 1787.
Below the Teesta, the Brahmaputra splits into two distributary branches. The western branch, which contains the majority of the river's flow, continues due south as the Jamuna (Jomuna) to merge with the lower Ganges, called the Padma River (Pôdda). The eastern branch, formerly the larger but now much smaller, is called the lower or old Brahmaputra (Bromhoputro). It curves southeast to join the Meghna River near Dhaka. The Padma and Meghna converge near Chandpur and flow out into the Bay of Bengal. This final part of the river is called Meghna.
In the past the course of the lower Brahmaputra was different and passed through the Jamalpur and Mymensingh districts. In a major magnitude earthquake on April 2, 1762, the main channel of the Brahmaputra at Bhahadurabad point was switched southwards and opened as Jamuna due to the result of tectonic uplift of the Madhupur tract.
The Jamuna is a very wide river. During the rains it is about 5–8 miles (8.0–12.9 km) from bank to bank. Even during the dry season when the waters subside, the breadth is hardly less than 2–3 miles (3.2–4.8 km).
The Jamuna was a barrier in establishing a direct road link between capital Dhaka and northern part of Bangladesh, better known as Rajshahi Division, until 1996. This was mitigated by the completion of the Jamuna Multi-purpose Bridge. It is also a very important waterway. It is navigable all year round by large cargo and passenger steamers. Before the Partition of Bengal in 1947, passenger steamers used to ply up to Dibrugarh in the state of Assam in the Indian Union. At present two steamer ferry services link the district of Pabna with the districts of Mymensingh, Tangail and Dhaka. The Bangladesh Railway maintains a ferry service between Serajganj in Pabna and Jagannathganj in Mymensingh. The other ferry service between Nagarbari in Pabna and Aricha in Dhaka is run by the C & B Department.


Teesta River

The Teesta River (or Tista River) is a 309 km (192 mi) long river flowing through the Indian states of West Bengal and Sikkimthrough Bangladesh before emptying to the Bay of Bengal. It carves out from the verdant Himalayas & Singalila in temperate and tropical river Valleys and forms the border between Sikkim and West Bengal. It flows through the cities of RangpoJalpaiguri and Kalimpong and joins the Jamuna (Brahmaputra) in Bangladesh. It drains an area of 12,540 km2 (4,840 sq mi).

Course

File:Teesta Rangeet Confluence.jpg
Teesta and Rangeet Confluence
The Teesta River originates from the Pahunri (or Teesta Kangse) glacier above 7,068 metres (23,189 ft), and flows southward through gorges and rapids in the Sikkim Himalaya.
It is fed by rivulets arising in the Thangu, Yumthang and Donkha mountain ranges. The river then flows past the town of Rangpo where the Rangpo River joins, and where it forms the border between Sikkim and West Bengal up to Teesta Bazaar. Just before the Teesta Bridge, where the roads from Kalimpong and Darjeeling join, the river is met by its main tributary, the Rangeet River.
File:Teesta River Bridge Inscription.jpg
Teesta River Bridge Inscription
At this point, it changes course southwards flowing into West Bengal. The river hits the plains at Sevoke, 22 kilometres (14 mi) northeast of Siliguri, where it is spanned by the Coronation Bridge linking the northeast states to the rest of India. The river then goes merging up with the Brahmaputra River after it bifurcates the city of Jalpaiguri and flows just touching Cooch Behar district at Mekhliganj and moves to Fulchori in Bangladesh.

Geography

File:Nettech riverrafting.jpg
River rafting on Teesta
Through its course, the Teesta river has carved out ravines and gorges in Sikkim meandering through the hills with the hill station of Kalimpong lying just off the river. Variegated vegetation can be seen along this route. At lower elevations, tropicaldeciduous trees and shrubs cover the surrounding hills; alpine vegetation is seen at the upper altitudes. The river is flanked by white sand which is used by the construction industry in the region. Large boulders in and around the waters make it ideal for rafting enthusiasts.
Between Rangpo town and the railway bridge (popularly called Lohapul or iron bridge) on it as it enters the plains at Sevoke, the Teesta flows with a very strong current, ideal for white river rafting. Towns like Teesta Bazaar and Melli have facilities for group rafting. Though the river looks innocuous, the underlying current is very strong. In 1915, G.P. Robertson, the then Municipal Engineer of Darjeeling, drowned after losing control of the boat in the turbulence while surveying the river. The boat struck a partially hidden boulder and was sucked in by a whirlpool, leaving no trace of the occupants.
During the monsoons, Teesta river distends its banks; both in size and turbulence. Landslides in this region often dam up parts of the river in this season.

Changes in course of rivers

James Rennell's 1776 map shows an earlier flow of the Teesta meeting the Ganges in three channels before a devastating flood in 1787 changed its course
Great changes have taken place in the course of some of the rivers in Bengal and the adjoining areas, during the period since 1500 CE. Although positive evidence is lacking, similar changes can be assumed in the remoter past. The Teesta River is one of the rivers that has changed over the years.
The Teesta earlier ran due south from Jalpaiguri in three channels, namely, the Karatoya to the east, the Punarbhaba in the west and the Atrai in the centre. The three channels possibly gave the name to the river as Trisrota "possessed of three streams" which has been shortened to Teesta. Of these three, the Punarbhaba joined the Mahananda. The Atrai passing through a vast marshy area known as Chalan Beel joined the Karatoya and the united stream joined the Padma (Ganges) near Jafarganj. In the destructive floods of 1787, the Teesta river forsook its old channel and rushing south-east it joined the Brahmaputra.James Rennell made a survey between 1764 and 1777 and his maps are one of the earliest authentic maps of Bengal in existence. In these maps Teesta is shown as flowing through North Bengal in several branches—Punarbhaba, Atrai, Karatoya, etc. All these streams combined lower down with the Mahananda, now the westernmost river in North Bengal, and taking the name of Hoorsagar finally discharged into the Ganges at Jafarganj, near modern Goalundo. The Hoorsagar river still in existence, being the combined outfall of the Baral, a spill channel of the Ganges, the Atrai, the Jamuna or Jamuneswari (not the main Jamuna through which the Brahmaputra now flows), and the Karatoya, but instead of falling into the Ganges, it falls into the main Jamuna, a few miles above its confluence with the Padma at Goalundo.
File:LOUIS(1894) p022 TEESTA SUSPENSION BRIDGE.jpg
British Engineering - Teesta Suspension Bridge in Sikkim (1894)
File:Coronation Bridge.jpg
Coronation Bridge across Teesta in West Bengal.

Hydroelectric projects

India has an estimated total hydroelectric power potential of 84 GW (at 60% load factor). Of this, Sikkim's potential share is 2.9%, or about 4.29 GW. As of 2010, 13.9% (594 MW) of Sikkim's potential had been implemented and was under operation, 44.8% is under implementation (1919 MW), and another 41.3% (1773 MW) is yet to be examined from environment and engineering design perspective
The successfully completed major projects and dams are:
1.   Teesta -V dam, the largest project so far, was completed in 2007 on Teesta in DikchuDistrict- East Sikkim. Its height is 87 metres (285 ft) and its length is 176 metres (577 ft). It generates 510 MW hydroelectric power and assists flood control.
2.   Rangit III hydroelectric project was completed in 2000 on Greater Rangit River which is a tributary of Teesta River. The catchment area of Rangit III dam is 979 square kilometres (378 sq mi) and the dam is 47 metres (154 ft) high. The project has 60 MW generation capacity, and is already online. The other three completed projects are significantly smaller and minor—Lower Lagyap, Upper Rongni Chhu and Mayang Chhu projects.

Other dams

The Teesta Barrage is a major irrigation project in Bangladesh, in Lalmonirhat District. Construction started 1979 and was completed in 1997-98.

Usage conflicts

Disputes over the appropriate allocation and development of the water resources of the river have remained a subject of conflict for almost 35 years, with several bilateral agreements and rounds of talks failing to produce results.

Seismic concerns

Teesta river area is in the seismically active Zone-V and has experienced micro-seismic activity. According to India's Ministry of Environment & Forests, the Teesta river dam projects have been approved with the requirement that they adopt suitable seismic coefficient in the design for the dam, tunnel, surge shaft and power house. The projects are cascaded over the length of the river, do not store large amounts water, have small reservoirs, and therefore the projects are expected to have very low risk from the reservoir induced seismicity in the area.

Climate and tectonics

The Teesta river has preserved good imprints of climatic and tectonics along its valleys and catchments. The interrelationship between climate, erosion, deposition and tectonic activities is not properly understood to date. These are being studied.


Surma River
The Surma River (Bengaliসুরমা নদীtranslit. Surma Nadi, Shurma Nodi) is a major river in Bangladesh, part of the Surma-Meghna River System. It starts when the Barak River from northeast India divides at the Bangladesh border into the Surma and the Kushiyara rivers. It ends in Kishoreganj District, above Bhairab Bāzār), where the two rivers rejoin to form the Meghna River. The waters from the river ultimately flow into the Bay of Bengal.
The average depth of river is 282 feet (86 m) and maximum depth is 550 feet (170 m).

Course

From its source in the Manipur Hills near Mao Songsang, the river is known as the Barak River. At the border with Bangladesh, the river divides with the northern branch being called the Surma River and the southern the Kushiyara River. This is where the river enters the Sylhet Depression (or trough) which forms the Surma Basin.
The Surma is fed by tributaries from the Meghalaya Hills to the north, and is also known as the Baulai River after it is joined by the south-flowing Someshwari River.
The Kushiyara receives tributaries from the Sylhet Hills and Tripura Hills to the south, the principal one from the Tripura Hills being the Manu. The Kushiyara is also known as the Kalni River after it is joined by a major offshoot (distributary) from the Surma. When the Surma and the Kushiyara finally rejoin in Kishoreganj District above Bhairab Bazar, the river is known as the Meghna River.
The Surma passes through many haors.

Photo Gallery of Surma River

 

File:Surma River 0002.jpgFile:Surma river.JPGFile:BD Surma 2.jpgFile:05122009 River Surma Sylhet photo2 Ranadipam Basu.jpg





Kushiyara River

The Kushiyara River is a distributary river in Bangladesh and Assam, India. It forms on the India–Bangladesh border as a branch of the Barak River, when the Barak separates into the Kushiyara and Surma. The waters of the Kushiyara thus originate in the state of Nagaland in India and pick up tributaries from ManipurMizoram and Assam.
From its origin at the mouth of the Barak, also known as the Amlshid bifurcation point, the Kushiyara flows westward forming the boundary between Assam, India, and the Sylhet District of Bangladesh. It flows between the towns of Zakigonj, Sylhet, and Karīmganj, Assam, and after the village of Pānjipuri enters entirely into the Beanibazar Upazila of Bangladesh. It then flows southwestward past the village of Deulgrām in Kurar Bazar Union where the river turns southward passing the village of Badepasha, Uttar Bade Pasha Union, Golapganj Upazila, where it again turns southwestward. It is joined from the left (east) by the Juri River at Fenchuganj Bazar. At Beel Pond (Pukhuri Beel) the river turns westward where it flows past the village of Balaganj Bazar in Balaganj Upazila, then southwestward past the villages of Hamjāpur, Abdullāpur and Manumukh. The river, after being joined from the left (south) by the Monu River, flows northwest past the villages of Aorangapur, Tajpur, and Pāilgaon, where it is joined by the small Itakhola River and assumes a westward direction. After the village of Mārkuli the river heads southwest past the village of Pāhārpur to the village of Ajmiriganj Bazar. After that the river forms several braided streams and heads south where it is joined by the Khowai River from the left (east) and heads southwest where it is rejoined by the Surma (locally known as the Danu River) from the right (north) and becomes the Meghna River, just north of the town of Bhairab Bazar. Altogether the Kushiyara runs about 160 kilometers. At its deepest during the rainy season the Kushiyara can reach a depth of 10 meters.[1] During the dry season it can appear to dry up almost completely in a few places with the bulk of the load being carried subsurface, such as in the braided stream area south of Ajmiriganj Bazar.


Buriganga River

The Buriganga River (Bengaliবুড়িগঙ্গা Buŗigônga "Old Ganges") flows past the southwest outskirts of Dhaka city, the capital of Bangladesh. Its average depth is 7.6 metres (25 ft) and its maximum depth is 18 metres (58 ft).

History

File:View of Dhaka (1885).jpg
View looking along the river Buriganga towards the city of Dhaka situated on the left bank. A Hindu temple tower stands at the water's edge (1885).
In the distant past, a course of the Ganges river used to reach the Bay of Bengal through the Dhaleshwari river. When this course gradually shifted and ultimately lost its link with the main channel of the Ganges it was renamed the Buriganga. It is said that the water levels during high and very high tides in this river astonished the Mughals. In the 20th century the water table and river became polluted by polythenes and other hazardous substances from demolished buildings near the river banks.
The course of the Padma, as the main course of the Ganges is known in Bangladesh, changed considerably during the period 1600 to 2000 AD. It is difficult to trace accurately the various channels through which it flowed, but the probability is that it flowed past Rampur Boalia, through Chalan Beel, the Dhaleshwari and Buriganga rivers, past Dhakainto the Meghna estuary. In the 18th century, the lower course of the river flowed further south. About the middle of the 19th century the main volume of the channel flowed through this southern channel, which came to be known as Kirtinasa. Gradually the Padma adopted its present course.

Pollution

The Buriganga is economically very important to Dhaka. Launches and country boats provide connection to other parts of Bangladesh, a largely riverine country. When the Mughals made Dhaka their capital in 1610, the banks of the Buriganga were already a prime location for trade. The river was also the city's main source of drinking water.
Today, the Buriganga river is afflicted by the noisome problem of pollution. The chemical waste of mills and factories, household waste, medical waste, sewage, dead animals, plastics, and oil are some of the Buriganga's pollutants. The city of Dhaka discharges about 4,500 tons of solid waste every day and most of it is released into the Buriganga. According to the Department of Environment, 21,600 cubic metres (5.7 million US gallons) of toxic waste are released into the river by the tanneries every day. Experts identified nine industrial areas in and around the capital city as the primary sources of river pollution: TongiTejgaonHazaribagh, Tarabo, NarayanganjSavarGazipur, Dhaka Export Processing Zone and Ghorashal. Most of the industrial units of these areas have no sewage treatment or effluent treatment plants (ETPs) of their own.
File:Buriganga River, Dhaka.jpg
View of Buriganga River from the bridge in Dhaka
More than 60,000 cubic metres (2,100,000 cu ft) of toxic waste, including textile dying, printing, washing and pharmaceuticals, are released into the main water bodies of Dhaka every day. According to the Dhaka Water and Sewerage Authority (WASA), about 12,000 cubic metres (420,000 cu ft) of untreated waste are released into the lake from Tejgaon, Badda and Mohakhali industrial areas every day. The waste mostly comes from garment washing and dyeing plants. Textile industries annually discharge as much as 56 million tonnes of waste and 0.5 million tonnes of sludge. Sewage is also released into the Buriganga. A newspaper article from 2004 indicated that up to 80% of Dhaka's sewage was untreated. Because of Dhaka's heavy reliance on river transport for goods, including food, the Buriganga receives especially high amounts of food waste since unusable or rotting portions of fruits, vegetables, and fish are thrown into the river.
Nearly 4.0 million people of the city are exposed to the consequences of water pollution every day.
Previously, a group of environmentalists attempted to form a river patrolling team to save the Buriganga and other rivers from extreme pollution. The group was concerned about the contamination of the rivers around the capital and demanded immediate action. The government has been criticised for its inability or unwillingness to stop the industrial units of the city from releasing untreated waste into the water.

Photo Gallery of Buriganga River 

File:BD Sadarghat 3.JPG
Large launches waiting at Sadarghat on the Buriganga for different destinations in Bangladesh

File:BD Sadarghat 2.JPG
A boatman sells pineapples at Sadarghat on the Buriganga

File:Dhaka-bangla-port.jpg
Sadarghat port on the Buriganga River, Dhaka City

File:Steamers in Sadarghat Dhaka.jpg
Sadarghat port on the Buriganga river is an important river transport hub

File:BD Sadarghat 4.JPG
Small boats ply on the Buriganga at Sadarghat

File:BurigangaReclaim.JPG
Land reclamation on the Buriganga river dredges sand and deposits it on the floodplain.

File:Burigonga River.jpg
A wonderful view of Buriganga River, Dhaka, Bangladesh

File:Evening of Burigonga River.jpg
Evening of Buriganga River, Dhaka, Bangladesh




Atrai River
Atrai River (also spelt as Atreyee) (Bengaliআত্রাই/আত্রেই নদী) flows in West Bengal and northern parts of Bangladesh.
In ancient times the river was called Atrei and finds a mention in the Mahabharata. It is linked with Jorapani river, Fuleswari river, and Karatoya River. It originates in Siliguri ward no 40, near baikanthapur forest West Bengal and then after flowing through Dinajpur District of Bangladesh, it enters India again.[1] It passes through Kumarganj and Balurghat community development blocks in Dakshin Dinajpur district. The river then renters Bangladesh. It splits into two rivers—the Gabura and the Kankra in Dinajpur district. It crosses the Barind Tract and flows into Chalan Beel. The river serves as a perennial source of fishing, even though it is often the cause of flooding in many areas during monsoons.
Total length of this river is approximately 240 miles (390 km). The maximum depth of the river is 99 feet (30 m).

Early history

File:Atrai River during monsoon.png
Atrai river during monsoon, a view from Atrai Upazila, Naogaon District, Bangladesh
The Atrai was formerly one of the greatest rivers of north Bengal for it was the main channel by which the waters of the Teesta discharged into the Ganges. In 1787, however, the Teesta broke away from its ancient bed and cut for itself a new and capacious channel by which it found its way into the Brahmaputra. Since then the Atrai has lost its importance and has now few traces of its former greatness.
It enters the district from Rajshahi flowing through the Chalan Beel and falls into the Baral near the village of Nurnagar. Formerly, it used to pursue a course to the south and east after leaving the Chalan Beel till it fell into the Jamuna; but the middle portion of this old channel has been obliterated by the Baral and the Ichhamati, which, taking off from the Padma cut across the Atrai and overwhelmed it by copious deposit of silt.
The southern portion of the river in this district can still be traced from its junction with the Ichhamati at Boalmari; it then flows through Dulai and Bera thana and falls into the Padma near Ratanganj. This river presents one of the most striking instances of riverine changes in the district of Pabna.


 Karnaphuli

Karnaphuli (Bengaliকর্ণফুলি Kôrnophuli; also spelt Karnafuli[1]), or Khawthlangtuipui (in Mizo, meaning "western river"), is the largest and most important river in Chittagong and the Chittagong Hill Tracts. It is a 667-metre (2,188 ft) wide river in the south-eastern part of Bangladesh. Originating from the [[[Saitah]] village of Mamit district in MizoramIndia, it flows 270 kilometres (170 mi) southwest through Chittagong Hill Tracts and Chittagong into the Bay of Bengal. It is said to "represent the drainage system of the whole south-western part of Mizoram."Principal tributaries include the Kawrpui River or Thega River, Tuichawng River and Phairuang River. A large hydroelectric power plant using Karnaphuli river was built in the Kaptai region during the 1960s. The mouth of the river hosts Chittagong's sea port, the main port of Bangladesh.

Chittagong City

Chittagong is situated on the banks of the Karnaphuli River between the Chittagong Hill Tracts and the Bay of Bengal. The city is a noteworthy seaside seaport city and monetary focus in southeastern Bangladesh. The Chittagong Metropolitan Area has a populace of more than 6.5 million, making it the second biggest city in Bangladesh. It is the capital of an eponymous locale and division. A water treatment plant has been set up by Chittagong Port Authority to source water from the Karnaphuli river for its uses. The plant will make the port self-reliant in its water needs.

Transportation

File:Karnafully Bridge CHittagong.jpg
New Karnaphuli Bridge
The Government has awarded a contract to build a two lane Karnaphuli tunnel underneath the Karnaphuli river to China Communication Construction Company (CCCC). This will be the first underwater tunnel in Bangladesh. CCCC will receive $706 million for its services with total costs expected to be over $1 billion.

Aquatic life

The river is home to Ganges river dolphin, which is an endangered species. Hilsa used to be common in the river, but have nearly disappeared from the river due to pollution.

Kaptai dam

File:Kaptai lake01.jpg
Kaptai Lake on Karnaphuli River
The Kaptai Dam is the location of the Karnafuli Hydroelectric Power Station, constructed in Kaptai in 1962 and the only hydro-electric power plant in the country. An earth-filled dam on the Karnaphuli River, the Kaptai Dam created the Kaptai Lake, which acts as the water reservoir for the hydropower station. The power plant produces a total of 230 megawatts of electricity.When then east Pakistan built the dam, Indian Prime Minister Jawaharlal Nehru didn't object even though it resulted in part of Indian side getting submerged and inflow of more than 40000 refugees.

Pollution

Like many rivers in Bangladesh, Karnaphuli is heavily polluted by agricultural runoff. Reducing the amount of oxygen available and harming aquatic life in the river.  In 2015, a train carrying oil crashed over a tributary of the river. The spill caused environmental degradation.

Gallery

File:Boat on Karnafuli 001.JPG
Boat on Karnaphuli River

File:Karnaphuli nodi (2586368687).jpg
View of the river

File:Ships at Karnaphuli River (1).jpg                                                       
Ships at Karnaphuli River

File:Karnaphuli River at night (01).jpg
Port of Chittagong and Karnaphuli River at night




Baral River
Baral (Borhal Bengaliবড়াল) river is one of the offshoots of the Ganges, starts its journey at Charghat Upazila of Rajshahi District of Bangladesh. The Baral flows through Natore and Pabna meets with the Gumani River at the east of Bhangura and finally meets with the Hurasagar River after joining with the Karatoya south of Shahjadpur Upazila. The river is approximately 147 kilometres (91 mi) long, and 120 metres (410 ft) wide and 6 metres (20 ft) deep on average. The river receives water from the Ganges only in the monsoon season. But it maintains its flow throughout the year with local runoff water and water from Chalan Beel. Its drainage area is about 230 square kilometres (89 sq mi). Some important places located on the banks of the Baral are: Charghat, Baraigram, Bagatipara, Gurudaspur, Chatmohar, Bhangura and Bera upazilas of Bangladesh. The Baral Bridge is located on this river at Bhangura Upazila.

Early history

The Baral also issues from the Padma at Charghat in the Rajshahi district and receives the water of the Atrai through the channel called the Gumani shortly after it enters the district of Pabna. It flows through the northern part of the Sadar subdivision, passing by the large village of Chatmohar, the headquarters of the Chatmohar subdistrict, and continue its course to south-east.
The Baral meets the Gumani (an extension of Atrai) near the village of Faridpur in Pabna District (not to be confused with the district headquarters of Faridpur District). The combined waters join the Hurasagar River, south of Shahjadpur Upazila.
Eighteenth-century geographer James Rennell referred to a former course of the Ganges north of its present channel, as follows:
"Appearances favour very strongly that the Ganges had its former bed in the tract now occupied by the lakes and morasses between Natore and Jaffiergunge, striking out of the present course by Bauleah to a junction of Burrrampooter or Megna near Fringybazar, where accumulation of two such mighty streams probably scooped out the present amazing bed of the Megna."
The places mentioned by Rennell proceeding from west to east are Rampur Boali, the headquarters of Rajshahi district, Puthia and Natore in the same district and Jaffarganj in the district of Dhaka. The place last named were shown in a map of the Mymensingh district dated 1861, as a subdistrict (thana) headquarters, about 10 kilometres (6 mi) south-east of Bera Upazila police station. It is now known as Payla Jaffarganj and is close to Elachipur opposite Goalunda. According to Rennell's theory, therefore, the probable former course of the Ganges would correspond with that of the present channel of the Baral River.


Dhaleshwari River
The Dhaleshwari River (Bengaliধলেশ্বরী Dhôleshshori) is a distributary, 160 kilometres (99 mi) long, of the Jamuna River in central Bangladesh. It starts off the Jamuna near the northwestern tip of Tangail District. After that it divides into two branches: the north branch retains the name Dhaleshwari and merges with the other branch, the Kaliganga River at the southern part of Manikganj District. Finally the merged flow meets the Shitalakshya River near Narayanganj District. This combined flow goes southwards to merge into the Meghna River.
Average depth of river is 122 feet (37 m) and maximum depth is 265 feet (81 m).
The Dhaleshwari is a branch of the Jamuna but probably used to be part of the main course of the Padma. The course of the Padma has changed considerably during the period 1600 to 2000 AD. It is difficult to trace accurately the various channels through which it has flowed. The probability is that it flowed past Rampur Boalia, through Chalan Beel, the Dhaleshwari and Buriganga rivers, past Dhakainto the Meghna estuary. In the 18th century, the lower course of the river flowed further south. About the middle of the 19th century the main volume of the channel flowed through this southern channel which came to be known as Kirtinasa. Gradually the Padma adopted its present course. 


Gorai-Madhumati River

The Gorai-Madhumati River (Bengaliগড়াই-মধুমতি Gôŗai-Modhumoti) is one of the longest rivers in Bangladesh and a distributary of the Ganges. In the upper reaches it is called the Gorai, and the name changes to Madhumati
.
Madhumati continuous stream through KushtiaJessoreFaridpurKhulnaPirojpur and Barguna districts in Bangladesh.



Pasur River
The Pasur River is a river in southwestern Bangladesh and a distributary of the Ganges. It continues the Rupsa River. All its distributaries are tidal. It meets the Shibsa River within the Sundarbans, and near to the sea the river becomes the Kunga River. It is the deepest river in Bangladesh.





Shitalakshya River
Shitalakshya River (Bengaliশীতলক্ষ্যা নদী pronounced: Shitalokkha Nodi) (also known as Lakhya River) is a distributary of the Brahmaputra. In its initial stages it flows in a southwest direction and then east of the city of Narayanganj in central Bangladesh until it merges with the Dhaleswari near Kalagachhiya. A portion of its upper course is known as Banar River. The river is about 110 kilometres (68 mi) long and at it widest, near Narayanganj, it is 300 metres (980 ft) across. Its flow, measured at Demra, has reached 74 cubic metres per second (2,600 cu ft/s). It remains navigable year round. The river flows through Gazipur district forming its border with Narsingdi for some distance and then through Narayanganj District.
The river's maximum depth is 21 metres (70 ft) and average depth is 10 metres (33 ft).

Change in course of rivers

The Shitalakhya is a branch of the Brahmaputra which has changed its course at least twice in the Bangladesh region in the fairly recent past, indirectly affecting the flow of water in the Shitalakhya. In the 21st century, the main flow of the Brahmaputra waters is through the Jamuna channel. Earlier, after tracing a curve round the Garo Hills on the west, it took a sharp turn in the south-east direction near Dewanganj, and then passing by Jamalpur and Mymensingh, threw off the Shitalakhya branch and flowed through the eastern part of Dhaka district and fell into the Dhaleshwari. The Shitalakhya ran almost parallel to the Brahmaputra and after passing by Narayanganj joined the Dhaleswari. The course of the Brahmaputra through Dhaka district was deserted by the 18th century when it flowed further east and joined the Meghna near Bhairab. Towards the end of the 18th century the Jamuna channel increased its importance and around 1850 it became the main channel of the Brahmaputra.
In Van den Brouck's map the river is marked as Lecki, flowing west of Barrempooter (Brahmaputra). In Van den Brouck’s time (1660), it was large and swift flowing river. It was so till the early 19th century. There, however, are some reservations about the accuracy of Van den Brouck’s map.
File:Van de Brook's map.jpg
Van den Brouck’s map of 1660

Historical importance

Sonargaon, a former capital of the region, stood on the banks of the Shitalakhhya. A fort was built by Isa Khan, a former ruler of the area, on its banks. It is believed that it was connected with Lalbagh Fort in Dhaka through an underground tunnel. Sonakanda Fort, also on the river, was built to counter Magh and Portuguese pirates. There are several historical mosques on its banks – Bandarshahi mosque (built in 1481 by Baba Saleh), Kadam Rasul mosque (containing the footprints of Hazrat Mohammad), Mariamer masjid (built by Shaista Khan) etc.

Economic importance

The Shitalakshya River was once an important center for the muslin industry. Even today, there are centres of artistic weaving on its banks. There also are a number of industrial units on its banks, including the Adamjee Jute Mills. Thermal power houses are located along the river at Palash (north of Ghorashal) and at Siddhirganj. Industrial affluent dumped into the river resulting in high levels of pollution is a cause for concern.
File:BD Sonargaon 1.JPG
Portion of a sari woven on the banks of Shitalakshya River
There is a river port in Narayanganj. Numerous launches move out along the river to different parts of Bangladesh. The government has approved construction of a container terminal on the river Shitalakhya with foreign investment.

Sangu River
The Sangu River is a river in Myanmar and Bangladesh. Its source is in the North Arakan Hills of Myanmar, located at 21°13´N 92°37´E. The Arakan Hills form the boundary between Arakan and the Chittagong Hill Tracts. It follows a northerly circuitous course in the hill tracts and then enters Bangladesh near Remarki, Thanchi UpazilaBandarban District, from the east. It flows north through Thanchi, Rowangchhari and Bandarban Sadar Upazilas of Bandarban District. It then flows west through Satkania and Banshkhali Upazilas in Chittagong District and flows into the Bay of Bengal near Chittagong, at 22°6´N 91°51´E, or about 16.09 kilometres (10.00 mi) south of the mouth of the Karnafuli River. The length of the river is 270 kilometres (170 mi); 173 kilometres (107 mi) are located within Bangladesh.
The major tributaries of the river are the Chand Khali Nadi and Dolukhal. The Chand Khali Nadi flows through the Patiya Plains, and the Dolukhal River drains into the Satkania Plains. Another tributary is the Kumira Khali, which drains into the Kutubdia Channel. There are seven Bangladesh Water Management Board hydrometric stations on this river, which have been recording data since 1965.
The Sangu drains off the waters of Patiya, Satkania, and Banshkhali Upazilas. It has a connection with the Karnafuli River through the Chand Khali River. The Sangu is a shallow river, but it becomes violent during rains and develops rapid currents. It is navigable up to 48.27 kilometres (29.99 mi) from the estuary. The Sangu gas field is located about 50 kilometres (31 mi) southwest of Chittagong and reaches a depth of 10 meters at its mouth.


Mahananda River
The Mahananda River (Pron:/ˌməhɑːˈnʌndə or ˌmɑːhəˈnʌndə/) (NepaliमहानदीHindiमहानन्दा नदीBengaliমহানন্দা নদী) is a trans-boundary river that flows through the Indian states of West BengalBihar, and Bangladesh. Its right bank tributary, the Mechi Riverforms part of Nepal's eastern boundary with West Bengal while the Kankai flows out of Nepal.

Course

File:MahanandaRiver.jpg
Mahananda river- view from captain mohiudding jahangir( bir shreshtha) bridge at Nawabganj district
The Mahananda originates in the Himalayas: Paglajhora Falls on Mahaldiram Hill near Chimli, east of Kurseong in Darjeeling district at an elevation of 2,100 metres (6,900 ft). It flows through Mahananda Wildlife Sanctuary and descends to the plains near Siliguri. It touches Jalpaiguri district.
It enters Bangladesh near Tentulia in Panchagarh District, flows for 3 kilometres (1.9 mi) after Tentulia and returns to India.[5] After flowing through Uttar Dinajpur district in West Bengal and Kishanganj and Katihar districts in Bihar, it enters Malda district in West Bengal. The Mahananda divides the district into two regions — the eastern region, consisting mainly of old alluvial and relatively infertile soil is commonly known as Barind (Borendrovomee), and the western region, which is further subdivided by the river Kalindri into two areas, the northern area is known as "Tal". It is low-lying and vulnerable to inundation during rainy season; the southern area consists of very fertile land and is thickly populated, being commonly known as "Diara".
It joins the Ganges at Godagiri in Nawabganj district in Bangladesh.

Basin data

The total length of the Mahananda is 360 kilometres (220 mi), out of which 324 kilometres (201 mi) are in India and 36 kilometres (22 mi) are in Bangladesh.
The total drainage area of the Mahananda is 20,600 square kilometres (8,000 sq mi) out of which 11,530 square kilometres (4,450 sq mi) are in India.

Tributaries

The main tributaries of the Mahananda are BalasonMechiRatwaKankai. In the Siliguri area it has three tributaries called the Trinai, Ranochondi and the pair of Chokor and Dauk taken as a single tributary.

History

The Kosi (Kausiki), which flows through the northeastern Bihar and joins the Ganges at a point much higher up than Rajmahal, originally ran eastward and fell into the Brahmaputra. The channel of the Kosi, therefore, must have been steadily shifting toward the west, right across the whole breadth of North Bengal. There was a time when the Kosi and the Mahananda joined the Karatoya and formed a sort of ethnic boundary between people living south of it and the Kochs and Kiratas living north of the river.



Dharla River
The Dharla River ([ধরলা নদীDhorola nodi] is one of Bangladesh's trans-boundary rivers. It originates in the Himalayas where it is known as the Jaldhaka River, and then it flows through the Jalpaiguri and Cooch Behar districts of West BengalIndia, one of the seven main rivers to do so. Here the river enters Bangladesh through the Lalmonirhat District and joins with the Jaldhaka River and flows as the Dharla River until it empties into the Brahmaputra River near the Kurigram District. Near Patgram Upazila, it again flows easternly back into India. It then moves south and enters Bangladesh again through Phulbari Upazila of Kurigram District and continues a slow meandering course.
The average depth of river is 12 feet (3.7 m) and maximum depth is 39 feet (12 m), in origin of Kurigram.
Erosion by the rivers Dharla and Jamuna took a serious turn in Lalmonirhat in 2007. In Lalmonirhat, about 2 kilometres (1.2 mi) of a 7-kilometre (4.3 mi) long flood control embankment was devoured by the Dharla. Three mosques, two temples, a madrassah and a primary school, and a vast tract of cultivable land with crops were devoured by the river, rendering about three thousand people homeless.
There is a park beside the Dharla at Kurigram. There also is a bridge. The river is full during the monsoon season but has only knee-deep water in summer. Deposition of silt has led to the formation of many small islands (chars) in the river.


Khowai River
Khowai River is a trans-boundary river that originates in the eastern part of the Atharamura Hills of Tripura in India. Flowing north-north-west, it leaves India at Khowai, and enters Bangladesh at Balla in Habiganj District.
The river passes east of Habiganj town, where it is under pressure from encroachment and pollution. North of town it turns west, and joins the Kushiyara near Adampur in Lakhai UpazilaKishoreganj District.



Muhuri River

Muhuri is a transnational river between India and Bangladesh. Rising in Tripura, it flows into Bangladesh where it merges with the Feninear the latter's mouth to the Bay of Bengal. The Muhuri is also known as the Little Feni.








Punarbhaba River

The Punarbhaba (Poonorvoba Bengaliপুনরভবা নদী) is a river of Bangladesh and West Bengal, of total length about 160 kilometres (99 mi) and a width of 3 to 8 kilometres (1.9 to 5.0 mi) and a mean depth of 1.96 metres (6.4 ft) It originates from the lowlands of Thakurgaon District of Bangladesh. The river's upper part is a few kilometres west of AtraiDinajpur town of Bangladesh is situated on the east bank of the river. It flows through Gangarampur and Tapan community development blocks of Dakshin Dinajpur district of West Bengal. After flowing to the south, this river meets with the Dhepa River. Ultimately it flows into the Ganges.




Karatoya River

Karatoya River (also spelt Korotoa River) (Bengaliকরতোয়া নদী), a small stream in Rajshahi Division of Bangladesh, was once a large and sacred river. A channel of it presently flows by the ancient ruins of Mahasthangarh (or Pundranagara, ancient capital of Pundravardhana) in Bogra District. The Karatoya mahatmya bears testimony to its past greatness. In the Mahabharata it is mentioned that a visit to the Karatoya after three days’ fast produces the same merit as an aswamedha (horse killing) sacrifice. Another ancient city, Sravasti, may have been located on the banks of the Karatoya, north of Mahasthangarh. However, there is a controversy about the possible location of Sravasti.

Early history

The Karatoya, known as Phuljhur rises in the Baikunthapur jungles in the extreme north-west of Jalpaiguri district (West Bengal, India) and forms for some distance the boundary between Dinajpur and Rangpur districts. It, then, meanders through Rangpur and Bogra. In the south of Bogra district, it receives the Halhalia and the united stream is then known as Phuljhur. It leaves Bogra at Chanda kona and flowing in a southerly direction past Raiganj and Shujapur is joined by the Ichhamati at Nalka. The Phuljhur then flows south past the important village of Ullapara, a few miles below which it joins the Hurasagar at Narnia after a course of about 64 kilometres (40 mi) in this district. After this junction, it takes the name of Hurasagar and passing close by Shazadpur and Hera joins the Jamuna near Bera.
The Karatoya is mentioned in the Puranas and had a high repute for sanctity. It was the eastern boundary of the old kingdom of Paundravardhana, the country of the Paundras which it separated from Kamrupa. It is shown in Van Den Brouk's map of Bengal (C, 1660) as flowing into the Ganges and in fact. before the destructive floods of 1787 it brought down to the Atrai and to the Ganges a great volume of Teesta water. Since the main stream of the Teesta was dirverted to the east in 1787, the Karatoya and the Phuljhur have gradually silted up. and they are at the present day rivers of minor importance. One channel, which joins the Baral, 48 kilometres (30 mi) east of Pabna. is still called indifferently the Buri Teesta or old Teesta and the Karto or Karatoya. Traces of an old channel, for which the name of the Karatoya is claimed, are also pointed out in the Chatmohar thana, where it appears to have been obliterated by the Baral.

Etymology

The name of the river is formed of two Bengali words kar (hand) and toa (water), signifying, in Hindu mythology, that the river was formed by the water which was poured on the hands of Shiva, when he married Parvati.

Changes in the course of rivers

File:Dr. M A Wazed Miah Bridge at Kanchdaha.jpg
Dr. M A Wazed Miah bridge over Karatoya river in Kanchdaha, Rangpur.
Great changes have taken place in the course of some of the rivers in Bengal and the adjoining areas, during the period since 1500 AD. Although positive evidence is lacking, similar changes can be assumed in the remoter past. The Karatoya is one of the rivers that has changed over the years.
The map (right) shows the main rivers in North Bengal and adjoining areas. Not shown are numerous tributaries and distributaries, which connect the main rivers, and allow the main rivers to change course. Therefore, the river-system pattern undergoes continuous changes. Such changes have not been reflected in the map. Moreover, many of the rivers have local names for sections of the course, adding to the complexity of the river system.
Tectonic disturbances have broken up the Karatoya into four distinct parts. The northern part, called the Dinajpur-Karatoya, is the main source of the Atrai. It rises in a marsh in Baikanthapur in Jalpaiguri district, but also receives water from underground streams. In Khansamaupazila its name changes to Atrai. In a second section, the Dinajpur-Karatoya was connected with the Rangpur-Karatoya north of Khansama, but very little water now passes down that channel. The upper part of Rangpur-Karatoya originates in the Jalpaiguri district and is known as the Deonai-Jamuneshwari up to Gobindaganj upazila. In a third section, the Jamuneshwari-Karatoya flows south-southeast to Gobindaganj upazila, where the main stream turns east through the Katakhali and falls into the Bangali River. The portion of the former river passing through Shibganj upazila is dry most of the year. It effectively separates the Rangpur-Karatoya from the Bogra-Karatoya, which flows south past Bogra town till it joins the Bangali to make Phuljhor river, which falls into the Hoorasagar. The fourth part, the Pabna-Karatoya, is a moribund river bed near Handial. Various other channels are also pointed out as parts of the Old Karatoya.

Teesta

File:Van de Brook's map.jpg
Van den Brouck’s map
File:Rennel's Map.jpg
Rennel’s map
The Teesta earlier ran due south from Jalpaiguri in three channels, namely, the Karatoya to the east, the Punarbhaba in the west and the Atrai in the centre. The three channels possibly gave the name to the river as Trisrota (possessed of three streams) which has been shortened and corrupted to Teesta. Of these three the Punarbhaba joined the Mahananda. The Atrai passing through a vast marshy area known as Chalan Beel joined the Karatoya and the united stream joined the Padma near Jafarganj. In the destructive floods of 1787, the Teesta forsook its old channel and rushing south-east it joined the Brahmaputra.
In the Siyar-al-Mutakhkhirin it is recorded that the Karatoya was three times the size of the Ganges when Bakhtiyar Khilji invaded the northern parts of Bengal in 1115. In Ven den Brouck's map of Bengal, prepared in 1660, the Karatoya is shown as a large channel.Rennel made a survey between 1764 and 1777 and his maps are one of the earliest authentic maps of Bengal in existence. In these maps Teesta is shown as flowing through North Bengal in several branches—Punarbhaba, Atrai, Karatoya etc. All these streams combined lower down with the Mahananda, now the westernmost river in North Bengal, and taking the name of Hoorsagar finally discharged into the Ganges at Jafarganj, near modern Goalundo. The Hoorsagar river is still in existence being the combined outfall of the Baral, a spill channel of the Ganges, the Atrai, the Jamuna or Jamuneswari (not the main Jamuna through which the Brahmaputra now flows), and the Karatoya, but instead of falling into the Ganges, it falls into the main Jamuna, a few miles above its confluence with the Padma at Goalundo.

Kosi

The Kosi (Kausiki), which now flows through the north-eastern Bihar and joins the Ganges at a point much higher up than Rajmahal, originally ran eastward and fell into the Brahmaputra. The channel of the Kosi, therefore, must have been steadily shifting towards the west, right across the whole breadth of North Bengal. There was a time when the Kosi and the Mahananda joined the Karatoya and formed a sort of ethnic boundary between people living south of it and the Kochs and Kiratas living north of the river.

Kaliganga River
The Kaliganga River (Bengaliকালীগংগা নদী) is a river in Bangladesh.

Early history

The Kaliganga takes off from the Garai just below the Kushtia town and flows straight to the south and enters Jhenaidah subdivision (now district). The mouth of this river is blocked by an embankment of the railway line to Goalundo, providing an alternate mouth further below.


Turag River
The Turag River (Bengaliতুরাগ নদী [t̪uraɡ nɔd̪i]) is the upper tributary of the Buriganga, a major river in Bangladesh. The Turag originates from the Bangshi River, the latter an important tributary of the Dhaleshwari River, flows through Gazipur and joins the Buriganga at Mirpur in Dhaka District. It is navigable by boat all year round.
The Turag suffers from infilling along its banks, which restricts its flow. It also suffers from acute water pollution. While attempts have been made to marginally widen the river, the majority of industry has made little effort to follow environmental law and the water has become visibly discolored.

History

Earlier this river was called as (Bengali: "Kohor Doriya"), "Kohor river".

Religious significance

Tabligh Jam'at, a popular Islamic movement originating in South Asia, initially took hold in Dhaka in the 1950s as Maulana Abdul Aziz and other leaders set up the regional headquarters at the Kakrail Mosque near Ramna Park. An initiative of the movement is an emphasis on the six uṣūl or "basic principles," two of which include ilm, the pursuit of knowledge, and dhikr or zikr, a method of prayer involving repetitive invocation of hadith and Qur'an passages. To this end, the movement places importance on ijtema or assembly, where members gather to practice and participate in dhikr, hear religious sermons and discuss their activities.
The largest of these, the Bishwa Ijtema, is situated by the Turag River in Tongi and attracts estimates of between two and four million Muslims annually as well as representatives from over sixty countries, making it the second biggest Islamic congregation after the Hajj.



Bangshi River
Bangshi River (also spelt Bansi) (Bengaliবংশী নদী) is an important river in central Bangladesh. It originates in Jamalpur, from the course of the old Brahmaputra and flows past the Madhupur tract. It flows through Tangail and meets the Tongi in Ghazipur. It passes near Jatiyo Smriti Soudho in Savar and falls into the Dhaleshwari. About 238 kilometres (148 mi) long, it is not navigable for most of the year except when swelled by the rains of the monsoon.
Louhajang is a tributary of the Bangshi
The river's average depth is 30 feet (9 m) and maximum depth is 80 feet (24 m).
Dhamrai on the banks of the Bangshi is still famous for its muslin weaving.

Turag-Bangshi River basin

A report on wetland protection and enhancement says, “The Turag-Bangshi floodplain is located in Kaliakair Upazila of Gazipur District. Upstream the basin is connected via the Dhaleswari-Pungli River to the greater Jamuna floodplain, and downstream it is connected through the Tongi River with the Buriganga-Meghna River system. The Upper Turag-Lower Bangshi is the main source of water in the region and flows through the site. All associated beels and other floodplain areas are connected to the main river through a series of khals and other channels. This is a deeply flooded area in the low-red soil plateau of Madhupur tract. The floodplain is inundated when water flows over the banks of the Turag-Bangshi river making all the low areas become a connected sheet of water in the monsoon. By late November, most of the water recedes and boro rice is planted in almost all of the low-lying areas. During the rainy season the water area is about 43 km² while in the dry season the water area becomes less than 7 km². About 2,68,900 people live in this area with 84% of households being involved in fishing, and 15 % of households are full time fishers.
A bazar nayar hat situated at bank while the famous pottery village pal para is also situated on south side of Bangshi.


Bishkhali River

GumtiGomtiGumati or Gomati (Bengaliগোমতীgomtī/gomôtī) is a river flowing through the north-eastern Indian state of Tripura and Bangladesh. A dam has been constructed near Dumbur on the river that has formed a lake covering 40 square kilometres (15 sq mi).







Mathabhanga River
The Mathabhanga River (Bengaliমাথাভাংগা নদী) is a transboundary river between India and Bangladesh.

Early history

The Mathabhanga or Hauli, whose lower reach is called the Haulia, leaves the Padma about ten miles below the point where the Jalangi leaves from it.
It flows first in a southeasterly direction as far as Hatboalia, where it bifurcates one branch, which is thereafter known as the 
Kumar or Pangasi, it then proceeds in the same direction, past Alamdanga, up to the boundary of the district which it forms for a few miles until it passes into Jessore, whilst the other branch pursues a very tortuous course. The general trend of which is to the south, until, after passing Chuadanga it reaches Krishnaganj (in India). There a second bifurcation takes place, the two resulting streams being known as the Churni and the Ichamati, and the name of the parent river being lost. It borderline's between India and Bangladesh.


Naf River

The Naf River (Burmeseနတ္ျမစ္ [naʔ mjɪʔ]Rakhineနတ္ျမစ္ [nɛ́ mràɪʔ]Bengaliনাফ নদী Naf Nodi IPA: [naf nod̪i]) is an international river marking the border of southeastern Bangladesh and western Myanmar.

Geography

The Naf River's average depth is 128 feet (39 m), and maximum depth is 400 feet (120 m).
It flows into the Bay of Bengal in the Indian Ocean, between the Bangladeshi Cox's Bazar District of the Chittagong Division, and the Burmese Rakhine State.
Historically, Shapuree Island, located at the mouth of the river, has played an important role territorially. It is considered as one of the immediate causes for the first Anglo-Burmese WarSt. Martin's Island is also at the river's mouth.

River incidents with fishermen & refugees

Regular incidents in which fishermen and Burmese refugees are shot by the Tatmadaw (Myanmar Armed Forces), and/or refugees are escorted back to Myanmar by Bangladeshi troops have occurred on the Naf River.
These include but are not limited to the following events:
·         February 1992 — The Lun Htin, A Burmese paramilitary force, killed 20 refugees who were crossing the Naf River to Bangladesh.
·         24 March 1994 — Members of the Myanmar Army's Western Military Command patrolling the Naf River found a group of RohingyaMuslims fishing from a small country boat. The soldiers tried to extort money from the fishermen, but when they were unable to do so, tied them up with rope and brought them to Balu Khali village in Maungdaw Township. Eight of the Rohingya fishermen were interrogated and tortured for five days, and then they were all shot by firing squad.
·         27 October 2001 — Burmese border troops killed one Bangladeshi man, wounded 2, and abducted 13 while they were fishing in the Naf River.
·         22 January 2005 — 70 people were shot and killed when Burmese border guards opened fire on a group of 50 boats attempting to cross the Naf River. The border guards claimed that they believed the boats contained "smuggled rice," implying that their actions, culminating in the mass shooting of unarmed people, were justified.
·         June 2012 — thousands of Rohingya Muslims fleeing sectarian violence in Rakhine State sought refuge across the Naf River in the Chittagong Division of Bangladesh, they were often escorted back by Bangladeshi troops. On 11 July 2012, Burmese President Thein Sein suggested expelling the Rohingya people from Myanmar or having the UN relocate the 300,000 Rohingya people living in Myanmar, a policy the UN quickly rejected.
·         August 2017 — The Border Guard Bangladesh station chief of the Ghumdum border post in Bangladesh accused Myanmar's military of firing on fleeing Rohingyas crossing the Naf River. An AFP reporter counted more than a dozen mortar shells and several heavy machine gun rounds fired by Burmese security forces on fleeing Rohingyas.


Halda River
Halda River is a river in south-eastern Bangladesh. It originates at the Badnatali Hill Ranges in Ramgarh Upazila in the Chittagong Hill Tracts, flows through Fatikchhari Upazila, Bhujpur Thana, Hathazari UpazilaRaozan Upazila and Chandgaon Thana of the Chittagong Metropolitan City, and falls into the Karnaphuli River. The 81-kilometre (50 mi) long river has a very turbulent tributary, the Dhurung River, which joins Purba Dhalai about 48 kilometres (30 mi) downstream. The river is navigable by big boats 29 km into it (up to Nazir Hat) and by small boats 16–24 km further (up to Narayanhat). The Halda reaches up 21 feet (6.4 m) in depth and 30 feet (9.1 m) in deepest point.
The Halda river is also famous for breeding pure Indian carp. This is the only pure Indian carp breeding field of Bangladesh, perhaps in South Asia.



Bura Gauranga River
The Bura Gauranga River and sea channel are located in the Patuakhali district of Barisal Division in Bangladesh.




Ichamati River

Ichamati River (Bengaliইছামতি নদী)(also spelt Ichhamati), is a trans-boundary river which flows through India and Bangladesh and also forms the boundary between the two countries. The river is facing the problem of siltation leading to thin flow of water in the dry season and floods in the rainy season. Experts are handling the situation and remedial matters are being discussed between the governments of India and Bangladesh.

Ichamati flow

Ichamati River is now in three parts: (1) The longer part flows from the Mathabhanga River, a distributary of the Padma, and after flowing for 208 kilometres (129 mi) joins the Kalindi River near Hasnabad in North 24 Parganas and Debhata in Satkhira District. (2) Once the main river west of Dhaka and (3) Ichamati of Dinajpur. Rennel’s map of 1764–66, shows the last two rivers as one. According to a number of hydrologists, the three Ichamati rivers, in the past, were a single channel. The second river marked above originates south of Jafarganj opposite to the mouth of the Hoorsagar near Nathpur factory and runs towards Joginighat in Munshiganj. Joginighat is situated at the confluence of the Jamuna and the Ichamati. There are five pilgrimage ghats along the river locally known as Panchatirtha ghats—Tirthaghat, Agla, Solepur, Barunighat and Joginighat.

Lower Ichamati

The Mathabhanga River originates from the rightbank of the Padma, at Munshiganj in Kushtia District in Bangladesh. It bifurcates near Majidia in Nadia District in India, creating two rivers, Ichamati and Churni. After traversing a length of 19.5 kilometres (12.1 mi) in India, the Ichamati enters Bangladesh near Mubarakpur. It flows for 35.5 kilometres (22.1 mi) in Bangladesh and again enters India at Duttaphulia in Nadia district. It forms the international border between India and Bangladesh for 21 kilometres (13 mi) from Angrail to Kalanchi, and again from Goalpara to the Kalindi-Raimangal outfall into the Bay of Bengal.
The Bhairab once flowed from the Ganges, across the present beds of the Jalangi, and further eastwards towards Faridpur. The Bhairab is no more a very active river. The Mathabhanga is a younger stream than Jalangi and it was not till very recently that the river completed its junction with the Hooghly by adopting the River Churni (now its lower reaches) for its main course. Earlier most of the water of the Mathabhanga ran off to the east down the Kumara, Chitra, Coboduk (Bhairab), and Ichamati, but all these escape routes have been shut off, except a small amount for the Ichamati. The point to note is that while earlier the rivers in the region flowed in a south-easterly direction, but later some force pulled the Jalangi and the Mathabhanga in a south-westerly direction. The inference is that it occurred because of a local subsidence, which was active for some period prior to 1750 and which has since become inactive.

River bed raised

File:Ichamati river@.jpg
Ichamati river at Basirhat city
While the bed of the Ichamati river is 4.3 metres (14 ft) higher than that of the Mathabhanga, that of the Churni is lower than Mathabhanga by 15 centimetres (6 in). During the lean period the level of water in the Mathabhanga is higher than that of the Padma. As a result, no water enters the Ichamati during the dry season. One of the causes of silting of the river was construction of guard wall for railway over bridge. The river beds in the area need to be excavated in order that there is flow of water during the lean season. Since this is required to be done both in India and Bangladesh, there is need for accord on this point. The matter has been discussed at the ministerial level, the area surveyed to have better idea of the problems of the people in the affected area, and decisive action is expected in the near future.
File:Boat On the Ichhamati.From Taki-Saidpur.JPG
The Ichamati from Taki-Saidpur
The ashes of so many burnt bodies have been carried by the river to the blue ocean illimitable. The man who expected so much return from his plantain trees on the southern side of that green, and at the bend of the river put bamboo traps to catch fish, is lying today on the bank of the Ichhamati – only his white bones remain, bleached by sunrays. So many young girls came to the river for water, and as they grow old their footprints are lost… during ceremonies of marriage, of making the child taste rice for the first time and of investing with the holy thread, the festivals of Durgpuja, Luxmipuja… those ladies of so many families pass away unnoticed… who knows when death may embrace us? Like a deceptive guide Death accompanies us at every bend of life and then suddenly, mysteriously he reveals his real character to a child, to an old man, perhaps… one listens to the music of eternity when one spots the old flowers or smells the pungent fragrance of herbal plants in Autumn. Some can visualise and dream the unlimitable unknown eternity in the image of the Ichhamati river during the turbulent rainy season.
File:Icchamati River in North 26 Pgns.jpg
Ichamati River at Bangaon town
The river zone also faces the problem of industrial pollution and forcible occupation of land by people. Arresting environmental hazards resulting from lack of sanitation facilities, encroachment, groundwater contamination like arsenic pollution, destruction of aquatic flora, fauna are some of the burning problem of the areas that needs to be tackled through participatory mechanism.
Ichhamati river and its branches form a large oxbow lake complex near Bangaon in North 24-Paraganas district. Besides agricultural and anthropogenic stresses, weed infestation particularly with water hyacinth (Eichhornia crassipes) is a major concern because it is covering the surface of lake waters.

Immersion of Durga images

At the end of Durga Puja the immersion ceremony in the Ichamati offers a unique spectacle along the India-Bangladesh river border. The Ichhamati river, which acts as a natural border between the two countries, becomes the scene of tremendous revelry on this day, when boats crammed with people from both countries converge here to immerse their respective idols. Boats of all shapes and sizes can be seen on the river, as far as the eye can see — each one flying the flag of its respective country. It is the only day during the year when border patrolling is relaxed and people can cross over to the other side of the river. While earlier, after immersing their idols, people could even disembark from their boats on the other side, restrictions imposed by border officials in the last few years has put an end to this practice.




Nabaganga River

Nabaganga (Bengaliনবগঙ্গা নদী) is the fourth-biggest river in Bangladesh and a tributary of Mathabhanga.

Name

The river was named Nabaganga (New Ganges in Bengali) in the belief that the Ganges also derived from Mathabhanga. The Nabaganga originates near the town of Chuadanga, in Chuadanga District. It flows east, where the Kumar and the Chitra rivers join it at Magura and Narail, respectively. From here, the river turns southward, where it merges into the Bhairab River. This is a recent change, as it was once a tributary of the Ichamati RiverSilt deposits changed the river's course. Efforts to steer the river back to its original course proved futile when dredging in the 1930, at Gaznavi Ghat, failed to produce the desired results. Today, the Nabaganga merges into the Kumar River after flowing through Chuadanga and Jhenaidah Districts. Most of the water in the Nabaganga River from this point on comes from the Kumar.

Course

Length
Width
Depth
River basin
214 km
2250 meters
10 meters
4000 square km





Kangsha River

Kangsha River (Bengaliকংস নদী) (also known as the Kangsai or the Kangsabati) is a river in the northern parts of Mymensingh and Netrakona districts of Bangladesh. The Someshwari is one of the rivers that join it from the north.

Course

At Gaglajuri the Dhanu is joined by the Kangsha which coming from the Garo Hills past Nalitabari as the Bhogai is at its best in the Netrakona subdivision at Deotukon and Barhatta. After Mohanganj it becomes a narrow winding khal with banks little higher than its own lowest level.
The river flows past BarhattaMohanganj and Dharampasha. The Dhala and Dhanu rivers which flow into Kishoreganj District are branches of Kangsha. The Kangsha flows into Surma River in Sunamganj District.

Watershed

According to a report on wetland protection, “All floodwaters come from the Garo/Meghalaya Hills through a number of hill streams and rivers. These in turn eventually drain out of the area through the Kaliganga-Kangsha River, which is part of the Sylhet Basin Haor complex of rivers and streams. Topographically a low-lying plain generally sloping from the north-west to south-east, this site was once a large lake. Presently the wet season water area is about 82.1 square kilometres with a dry season water area of about 9 square kilometres. About 623,000 people inhabit the area, about 90% of households catch fish, and 9% are full time fishing households. The catchment area is about 212.39 km². The higher land surrounding the site is intensively cropped. Massive changes have occurred in the last 20 years with rapid and almost complete deforestation of the upper watershed and lower wetland areas, followed by a rapid loss of connection due to embankments and increased sedimentation.”

Gallery

File:BD Kangsha River 2.jpg
A farmer busy on the banks of the Kangsha River

File:BD Kangsha River 3.jpg
A brick kiln at Dharampasha on the banks of the Kangsha River

File:BD Surma 17.jpg
The bamboo market at Pashukhali






Bangali River

The Bangali River (Bengaliবাঙালি নদী) is one of the main rivers in the northern part of Bangladesh (commonly known as North Bengal). As of 2007, the river is in the news because of the possibility that it might merge with the Jamuna River, which could lead to major changes in the geography of the region.

Etymology

In the later part of the 18th century, movements against the British Raj erupted in North Bengal. Two of the major centers of the Fakir-Sanyasi Rebellion were Bogra District and Rangpur, located on two sides of the Bangali River. Whether this was the reason that prompted the name Bangali (the people of Bengal) is still unknown.

Geography

The Bangali River originates as a distributary of Teesta River in Nilphamari District. The river flows as the Ghaghot River from its source to Gaibandha, where it splits into two branches —one moves towards the west as the "Ghaghot" and empties into the Karatoya River at SherpurBogra District; the other section of the Bangali River flows to the south and subsequently breaks into two sections in Bogra. These two sections join the Jamuna and Karatoa.
There are a number of distributaries of the Bangali River such as the Belal, Manosh, Modhukhali, Ichamoti, and Volka among others. These distributaries often dry up in the winter season.
Recently, with a gradual decrease in the flow of the Teesta River, the Jamuna has become the main source of water for the Bangali River. Some scientists, including former executive director of the River Research Institute, Abdul Wajed, consider the Jamuna to be the primary source of the river.
Similar to other rivers in the region, the Bangali undergoes several divisions and receives multiple tributaries. According to the Bogra District Gazetteer, the Bangali River flows through Sariakandi Upazila to the south east and reaches Chou-Ghata. Thereafter, at Jurigacha, it splits into two major branches. The western branch named Hal-Halia flows towards the south passing across Bogra, Sherpur and Dhunat Upazila. The eastern branch continues as the Bangali River through Dhunat Thana.[3] At Bathuabari in Dhunat, the two branches meet again and the conjoined flow continues by the name of "Fuljhur", which turns towards the west near South Pantabari and arrives at a place called Kachari Kallyani. The name of the stream changes here to Khanpur Mohona which soon drains into the Karatoa. From there, the combined Bangali–Karatoa flows by Modhiabagh, Himabari and Sherpur. Very cool river.

History

The present-day streams of Jamuna and Teesta were created after a massive flood in 1787. The flood had a major impact on the geography of rivers in the region; several rivers changed course, and the changes continued for the next forty years. Prior to the flood, the Brahmaputra River used to pass through Mymensingh and Bhoirob Bazaar to meet the Meghna River. After 1787, the Brahmaputra changed its course to drain into the Padma River.
Along with changes in course, the Jamauna and Teesta also gave rise to new distributaries in the aftermath of the 1787 flood. It is speculated that the Bangali River was born out of those changes of course of the Jamuna and Teesta.

Concerns

Scientists are concerned about the current condition of the Bangali River. According to the "Pani Unnoyon Board" (Water Development Board), every year the Jamuna moves 80 m (262 ft) closer to the Bangali as a result of erosion of its banks. As of 2007, a stretch of only 300 m (984 ft) separates the two rivers, an alarming sign for the continued existence of the Bangali River. Engineers worry that if these two rivers merge, an area of 1,000 square kilometres and 9 m (30 ft) of Bogra and Sirajganj will be completely submerged under water. Water would destroy the Bogra–Nagarbari road and eventually cause the Bangabandhu Bridge over the Jamuna to be ineffective. It would increase annual flooding in the floodplain of Bangali River. Location: 24 50 41 N 89 50 41 E.





Bhairab River

Bhairab River (Bengaliভৈরব) is a river in West Bengal, India, and south-western Bangladesh, a distributary of the Ganges It passes through Khulna, dividing the city into two parts. Bhairab River originates from Tengamari border of Meherpur Districtand passes through Jessore town. The river is approximately 160 kilometres (100 mi) long and 91 metres (300 ft) wide. Its average depth is 1.2 to 1.5 metres (4 to 5 ft) and with minimal water flow, it has plenty of silt.

Early history

The Bhairab, which is considered to be of older origin its parent river the Jalangi, takes off from that river at a point, a few miles north of Karimpur (in West Bengal). After a tortuous course towards the south it turns to the east forming the boundary line between Meherpur P.S. (Bangladesh) and Karimpur (India) for a short distance and then turning south enters MeherpurP.S. and flows past Meherpur town to the south and loses itself in the Mathabhanga close to the east of Kapashdanga. Its intake from the Jalangi having silted up, this river has been practically dead since long. The poor climate of Meherpur, which lies upon its banks is in great measure attributed to the stagnancy of its water.

Geography

Bhairab River has two main branches, the Khulna-Ichamati and the Kobadak. The Khulna-Ichamati forms a boundary between Bangladesh and India. The towns of Khulna and Jessore are situated on the bank of the river. The development of their settlements and culture were influenced by the river. The Rupsa River is formed from the Bhairab and the Atrai River, and flows into the Pasur River.



Feni River
Feni River (Bengaliফেনী নদী Feni Nodi) is a river in the Indian state of Tripura and southeastern Bangladesh. It is a trans-boundary riverwith an ongoing dispute about water rights. The Feni River originates in South Tripura district and flows through Sabroom town and then enters Bangladesh. Muhuri River, also called Little Feni, from Noakhali District joins it near its mouth. The river is navigable by small boats as far as Ramgarh, about 80 kilometres (50 mi) upstream.
The question of sharing of the waters of the river between India and Pakistan was first discussed in 1958. Through at least 2006 the countries continued to consider possible compromises.

Course

Feni River originates in South Tripura district and flows through Sabroom town and then enters Bangladesh. Muhuri River, also called Little Feni, from Noakhali District joins it near its mouth. The river is navigable throughout the year by small boats up to Ramgarh, some 80 kilometres (50 mi) upstream.

Dispute

The question of sharing of the waters of the river between India and Pakistan was discussed as early as 1958.
Reports from Pakistan in 2007 said, "India is trying to withdraw water from Feni River for irrigation projects in exchange of resolving erosion problem in Bangladesh side of this bordering river."
According to statement on sharing of river waters with Bangladesh, released by India in 2007, "Feni River has been added to its mandate in the 36th JRC meeting. A decision was taken in the meeting that the Ministers of Water Resources of both the countries would visit the sites where developmental works have been held up. This Joint Inspection of various locations of developmental and flood protection works on common rivers was held from September 14–21, 2006."

Inland port in Tripura

Sabroom in South Tripura, in India, is only 18 to 20 kilometres (11 to 12 mi) from the Bay of Bengal, but it is a virtually a landlocked territory. In 2007, there was a thinking that an inland harbour could be built at Sabroom, connected to the sea through a canal, if Bangladesh allowed it. The construction of such a harbour could reduce considerably the cost of transportation of goods from the rest of India to Tripura and the north-east of India. However, the idea had not been acted on through 2007.

Bridge

A bridge is to be built over the Feni River to link up with Tripura. Construction was set to begin in December 2010 for the 150-metre (490 ft) link between Sabroom and Ramgarh. When completed, the bridge would provide the only land link between India's eastern states and its western states other than through Assam.
The foundation stone for the bridge was officially laid by Indian Prime Minister Narendra Modi and Bangladesh Prime Minister Sheikh Hasina in June 2015. The cost of constructing the bridge, as well as the approach roads to it in both Bangladesh and India, will be borne by India. The Tripura Public Works Department was appointed to execute the project. When completed, the bridge will connect Tripura with the Chittagong port in Bangladesh providing landlocked North East India with access to the sea, and enabling the transport of heavy machines and goods to North East India via Bangladesh.




Dakatia River
The Dakatia River is a river of Bangladesh and India. The length of the Dakatia is about 207 kilometres (129 mi). It enters Bangladesh from Tripura. After re-entering India from Comilla District, it joins the Meghna River at Chandpur borostation molehead.It is in Chandpur.

Early history

The first tributary that the Meghna receives after entering Noakhali is the Dakatia river. "It is the combination of several hill streams via Sonaichari, Pagli Boaljar and Kakri, etc., originating from Tippera Hills. After traversing a distance of about 6 miles in the south it bifurcates at Latitude 230.21" and Longitude 910 31 '. The left hand branch follows a sinuous course in the south till it meets little Feni River, whereas the right hand branch flows in the south-west and north-west up to Hajiganj where Boa1juri river meets it on the right bank. Before taking an abrupt turn to the south at about 15 miles down Hajiganj the river throws off a channel, known as Chandpur Nullah which falls into the Meghna and the river following a meandering course drops into Meghna at Hazimara."
Dakatia was formerly a most important channel for trade. It is still navigable in the lower region by country boats during the monsoon season. The upper region is navigable throughout the year. There are three gauging stations on Dakatia river at Hajiganj, Raipur and Hazimara.




Dhepa River
The Dhepa is a small river in northern Bangladesh. The river originates from the Atrai river in Mohanpur and falls into the Punarbhaba. The length of this river is 40 kilometres (25 mi), and the depth of this river is 6 metres (20 ft).






Jaldhaka River

The Jaldhaka River (Pron:/ˌdʒælˈdɑːkə/) (Bengaliজলঢাকা নদী), also known as Dichu River in earlier times, is a trans-boundary river with a length of 192 kilometres that originates from the Kupup or Bitang Lake in southeastern Sikkim in the eastern Himalayas and flows through Bhutan and the KalimpongJalpaiguri and Cooch Behar districts of West BengalIndia. At that point the river enters Bangladesh through the Lalmonirhat District and then joins with the Dharla River until the Dharla debouches into the Brahmaputra Rivernear the Kurigram District. Due to the river's wandering over several international borders, only a small length of the river lies within Bangladesh.

Geography

The Jaldhaka River is formed by the conjunction of three streams at Bindu, the end point of the Jaldhaka Police Station at Kalimpong district in West Bengal. The three streams are known as Bindu Khola, Dudh Pokhri and Jaldhaka that originates from the Kupup Lake, a small glacial lake in Sikkim. The combined streams meet at Bindu to form the Jaldhaka River, thus forming a riverine boundary with India and Bhutan in the left bank. The main tributaries that join the river in its right bank are the Murti, the Naksal Khola, the Sutungaand the Jarda in the lower reach. The Diana, Rehti-Duduya and Mujnai are the main left bank tributaries.
The river flows through the three North Bengal districts of Kalimpong, Jalpaiguri and Cooch Bihar. The entire watershed is the most fertile agricultural zone along with the Teesta Basin. The upper course is famous for crops like ginger, medicinal herbs and fruits like oranges and pomegranate. The middle course comprising Jalpaiguri district is entirely tea and corn dominated and the lower course is dominated by rice, jute and tobacco. The inter-river formed lands are cultivated with crops like bamboo and mat sticks. In the lower basin, the inter-river lands are cultivated with banana.
The river enters Bangladesh at Ghoksadanga district to meet the Brahmaputra or the Jamuna as it is known there.



Dhanu River
The Dhanu (Bengaliধানু) is a river in Bangladesh.
The Dhanu, also called the Ghorautra, is a tributary of the Meghna. It flows directly southwards from Sunamganj in Sylhet through the eastern thanas of Netrakona and Kishoreganj. It is navigable year-round. It falls and rises with the daily tides and even the canals connected with it a long way inland, at places like Gag Bazar and Badla, experience the effect of these tides.





Manu River, Tripura

The Manu River rises in the mountains of Tripura (India). After its initial rapid passage through mountainous terrain it slows and meanders during its course, which includes the Sylhet plains. It joins the Kushiyara River at Manumukh in the Bangladeshi district of Moulvibazar.








Dhalai River

The Dhalai River (also known as Dhala River) a trans-boundary river in India and Bangladesh. It rises in the mountains of the Indian state of Tripura. It enters Kulaura Upazila of Maulvi Bazar District of Bangladesh. Later it joins Manu River in Rajnagar Upazila.

Gallery

Image result for Dhalai River, Purbadhala Upazila, Dhaka Division








Titas River

Titas River (Bengaliতিতাস Titash) is a transboundary river that merges into the Meghna river. Titas starts its journey from the Tripura State. The river is 98 km long and joins Meghna river near Ashuganj, Brahmanbaria. Bangladesh's first Y-shaped bridge is over this river connecting Comilla and Brahmanbaria.

Geography

Titas Gas, the biggest natural gas reserve of Bangladesh located in Brahmanbaria, which supplies gas to capital Dhaka, is named after this river. One of the offshoots of the Meghna river is also named as the Titas which branches out from the Meghna at Chatlapur and again meets the Meghna at Nabinagar Upazila The river has became narrow and shallow in many places due to siltation.

Depiction in pop culture

Titash Ekti Nadir Naam (A river called Titas) is a powerful story in Bengali by Advaita Malla Barman turned into a touching film by Ritwik Ghatak. It is depiction of the tragic lives of a fishing community dependent on this river.




Old Brahmaputra River

Old Brahmaputra River (Bengaliপুরাতন ব্রহ্মপুত্র নদী) is a river in north-central Bangladesh.





Kirtankhola
Kirtankhola (Bengaliকীর্তনখোলা) is a river that starts from Sayeshtabad in Barisal district and ends into the Gajalia near Gabkhan khal (canal). The total length of the river is about 160 kilometres (99 mi).
In ancient times, the Ganges used to flow in three courses in Bengal, namely the Nalini, the Haldini and the Pabni. The Pabni, meeting with the ancient Padma River joint flow of which termed as the Sugandha, flowed through Madaripur south of Faridpur, again renaming as the Andar Khan or the Arial Khan. The Arial Khan branched out in several courses in Madaripur and flowed through Barisal. Flowing forward and receiving various names, the Arial Khan fell into the Bay of Bengal as the Haringhata.
In south of Madaripur, the Andar khal or the Arial Khan was named as the Sugandha and was the greatest river of Bakla Chandradwip or the South Bengal. In course of time, the deltaic branches of the Sugandha were silted up and gradually disappeared creating various islands or chars in many parts of the greater Barisal district. With the passage of time, the name Sugandha was lost and the name Arial Khan became more prominent. One of the offshoots of this Arial Khan flows eastward near Shayeshtabad and falls into the Bay of Bengal after meeting with the meghna at Sahbazpur in bhola. Another offshoot of Arial Khan flows south-southwest as the Kirtankhola up to Nalchity keeping the Barisal town on its west bank. The further course of the river falls into the Bay of Bengal receiving various names at various places and finally as the Haringhata.




Hariabhanga River
Hariabhanga River (Bengaliহরিয়াভাঙ্গা নদী)(also spelt Haribhanga) is a tidal estuarine river in and around the Sundarbans in North 24 Parganas district in the Indian state of West Bengal, bordering on Satkhira District of Bangladesh.
The Ichamati breaks into several distributaries below Hingalganj the chief of which are the RaimangalBidya, Jhilla, Kalindi and Jamuna. It follows the international boundary between India and Bangladesh. The New Moore Island is located at the mouth of the Hariabhanga River.



Someshwari River

Someshwari River (also spelt Someswari) (Bengaliসোমেশ্বরী নদী), known as Simsang River in the Indian state of Meghalaya, is a major river in the Garo Hills of Meghalaya and Netrakona District of Bangladesh. It divides the Garo Hills into two parts.


Bangladesh

In Bangladesh it flows through the Susang-Durgapur and other areas of Netrakona District till it flows into the Kangsha River. A branch of the river flows towards Kalmakanda and meets the Balia River. Another branch of the river flows into the haor areas of Sunamganj District and flows into the Surma River It is one of Bangladesh's trans-boundary rivers.





Rupsa River
The Rupsha River is a river in southwestern Bangladesh and a distributary of the Ganges. Rupsha is one of the most famous rivers of Bangladesh.

Description

It forms from the confluence of the Bhairab and Atrai rivers, and flows into the Pasur River.Its entire length is affected by tides.
File:Rupsha river.jpg
Rupsha river, Khulna
It flows by the side of Khulna, and connects to the Bay of Bengal through Poshur river at Mongla channel. Near Chalna, it changes its name to Pasur River and flows into the Bay of Bengal.
A significant number of fisheries, dockyards, shipyards and factories are situated on the bank of this river. A significant number of families depend on catching fish in the river. There is a bridge over the river named Khan Jahan Ali Bridge. This bridge connects Khulna and Bagerhat Districts.



Tangon River
Tangon River (also known as Tongon River) (Bengaliটাংগন নদী) is a river passing through the Indian state of West Bengal and Bangladesh. It is tributary of Punarbhaba River. It was named after Tankonath, zamindar of Ranisankail in Thakurgaon District.
After originating in West Bengal, it passes through Panchagarh DistrictPirganj in Rangpur DistrictBochaganj and Biral in Dinajpur District in Bangladesh before it flows through Kushmandi and Bansihari community development blocks of Dakshin Dinajpur district in West Bengal. There is also a dam constructed on Tangan river near boda town, 26'11'32"N 88'28'02" E.
It re-enters Bangladesh and meets Punarbhava River near Rohanpur in Naogaon District.

Barrage

In 1989, a barrage was built across the river 10 kilometres (6 mi) west of Boda in Panchagarh District.

Comments

Post a Comment