The Ganges is a trans-boundary river of Asia which flows through India and Bangladesh. The 2,525 km (1,569 mi) river rises in the western Himalayas in the Indian state of Uttarakhand. It flows south and east through the Gangetic plain of North India, receiving the right-bank tributary, the Yamuna, which also rises in the western Indian Himalayas, and several left-bank tributaries from Nepal that account for the bulk of its flow. In West Bengal state, India, a feeder canal taking off from its right bank diverts 50% of its flow southwards, artificially connecting it to the Hooghly River. The Ganges continues into Bangladesh, its name changing to the Padma. It is then joined by the Jamuna, the lower stream of the Brahmaputra, and eventually the Meghna, forming the major estuary of the Ganges Delta, and emptying into the Bay of Bengal. The Ganges–Brahmaputra–Meghna system is the second-largest river on earth by discharge.
A distributary, or a distributary channel, is a stream that branches off and flows away from a main stream channel, a phenomenon known as river bifurcation. A distributary is effectively the opposite of a tributary, which is a stream that flows towards and into another stream or river. Distributaries are often found where a stream approaches a lake or an ocean; as such, they are a common feature of river deltas. They can also occur inland, on alluvial fans, or where a tributary stream bifurcates as it nears its confluence with a larger stream. In some cases, a minor distributary can divert so much water from the main channel that it can later become the main route.
The Brahmaputra is a trans-boundary river which flows through Tibet (China), Northeastern India, and Bangladesh. It is known as Brahmaputra or Luit in Assamese,Yarlung Tsangpo in Tibetan, the Siang/Dihang River in Arunachali and Jamuna River in Bengali. It is the 9th largest river in the world by discharge, and the 15th longest.
The Jamuna River is one of the three main rivers of Bangladesh. It is the lower stream of the Brahmaputra River, which originates in Tibet as Yarlung Tsangpo, before flowing through India and then southwest into 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.
The Ganges Basin is a major part of the Ganges-Brahmaputra-Meghna (GBM) basin draining 1,999,000 square kilometres in Tibet, Nepal, India and Bangladesh. To the north, the Himalaya or lower parallel ranges beyond form the Ganges-Brahmaputra divide. On the west the Ganges Basin borders the Indus basin and then the Aravalli ridge. Southern limits are the Vindhyas and Chota Nagpur Plateau. On the east the Ganges merges with the Brahmaputra through a complex system of common distributaries into the Bay of Bengal. Its catchment lies in the states of Uttar Pradesh (294,364 km2), Madhya Pradesh (198,962 km2), Bihar (143,961 km2), Rajasthan (112,490 km2), West Bengal (71,485 km2), Haryana (34,341 km2), Himachal Pradesh (4,317 km2), Delhi, Arunachal Pradesh (1,484 km2), the whole of Bangladesh, Nepal and Bhutan. Several tributaries rise inside Tibet before flowing south through Nepal. The basin has a population of more than 500 million, making it the most populated river basin in the world.
The Jaldhaka River (Pron:/ˌdʒælˈdɑːkə/), also known as Dichu, a tributary of the Brahmaputra is a trans-boundary river flowing through India, Bhutan and Bangladesh with a length of 233 kilometres. It originates from the Bitang Lake at Kupup, Gangtok District, Sikkim, near the Jelep La pass below Dongkya Mountain Range. It flows through Pakyong District of Sikkim, India and then passes through forests of Samtse District of Bhutan where it flows for around 40 kilometres and than re-enters India at Bindu, Kalimpong district. Further it passes through Neora Valley National Park, Chapramari Wildlife Sanctuary & Gorumara National Park in West Bengal along with cities and towns like,Paren, Gairibas, Jhalong, Dhupguri, Falakata, Mathabhanga and flows through Kalimpong, Jalpaiguri and Cooch Behar districts in West Bengal, India before the river enters Bangladesh at Mogolhat, Lalmonirhat District of Rangpur Division. It is known as Dharla River in Bangladesh and flows through towns like Kolaghat, Phulbari and Kurigram City and Passes southwards until the Dharla debouches into the Brahmaputra River at Bagua Anantpur of Kurigram District. Due to the river's wandering over several international borders, only a small length of the river lies in Bangladesh and Bhutan and most of its path lies in India. In some places, this river is also known as Mansai river and Singhimari river.
The Kosi or Koshi is a transboundary river which flows through China, Nepal and India. It drains the northern slopes of the Himalayas in Tibet and the southern slopes in Nepal. From a major confluence of tributaries north of the Chatra Gorge onwards, the Kosi River is also known as the Saptakoshi for its seven upper tributaries. These include the Tamur River originating from the Kanchenjunga area in the east and Arun River and the Sun Kosi from Tibet. The Sun Koshi's tributaries from east to west are the Dudh Koshi, Likhu Khola, Tamakoshi River, Bhote Koshi and Indravati. The Saptakoshi crosses into northern Bihar, India where it branches into distributaries before joining the Ganges near Kursela in Katihar district. The Kosi is the third-largest tributary of the Ganges by water discharge after the Ghaghara and the Yamuna.
The Barak River flows 900 kilometres (560 mi) through the states of Manipur, Nagaland, Mizoram and Assam in India. Further it enters Bangladesh where it bifurcates into the Surma river and the Kushiyara river which converge again to become the Meghna river before forming the Ganges Delta with the Ganga and the Brahmaputra rivers and flowing into the Bay of Bengal. Of its total length, 524 km (326 mi) is in India, 31 km (19 mi) on the Indo–Bangladesh border and the rest in Bangladesh. The upper part of its navigable part is in India — 121 km (75 mi) between Lakhipur and Bhanga, declared as National Waterway 6, (NW-6) since the year 2016. It drains a basin of 52,000 km2 (20,000 sq mi), of which 41,723 km2 (16,109 sq mi) lies in India, 1.38% (rounded) of the country. The water and banks host or are visited by a wide variety of flora and fauna.
The Nan River is a river in Thailand. It is one of the most important tributaries of the Chao Phraya River.
Dihing or Burhi Dihing is a large tributary, about 380 kilometres (240 mi) long, of the Brahmaputra River in Upper Assam in northeastern India. The river originates at 2,375 metres (7,792 ft) above sea level in the Eastern Himalayas in Arunachal Pradesh and flows through Tinsukia (Tinicukeeya) and Dibrugarh Districts in Assam to its confluence with the Brahmaputra at Dihingmukh. Its watershed covers about 6,000 square kilometres (2,300 sq mi). The Dihing has created number of oxbow lakes in the area.
The Kameng River in the eastern Himalayan mountains, originates in Tawang district from the glacial lake below snow-capped Gori Chen mountain 27°48′36″N92°26′38″E, elevation 6,300 metres (20,669 ft), on the India-Tibet border and flows through Bhalukpong circle of West Kameng District, Arunachal Pradesh and Sonitpur District of Assam, India. It becomes a braided river in its lower reaches and is one of the major tributaries of the Brahmaputra River, joining it at Tezpur, just east of the Kolia Bhomora Setu bridge.
The Subansiri is a trans-Himalayan river and a tributary of the Brahmaputra River that flows through Tibet's Lhuntse County in the Shannan Prefecture, and the Indian states of Arunachal Pradesh and Assam. The Subansiri is approximately 518 kilometres (322 mi) long, with a drainage basin 32,640 square kilometres (12,600 sq mi). It is the largest tributary of the Brahmaputra contributing 7.92% of the Brahmaputra's total flow.
Dibang River, also known as Sikang by the Adi and Talo in Idu, is an upstream tributary river of the Brahmaputra in the Indian state of Arunachal Pradesh. It originates and flows through the Mishmi Hills in the (Upper) Dibang Valley and Lower Dibang Valley districts.
Beki River is one of the right bank tributaries of the mighty Brahmaputra River, which flows down from the Bhutan region but a large portion flows in Indian state Assam. It touches flows from Bhutan touching Mathanguri, Naranguri, Khusrabari, Valaguri, Mainamata, Udalguri, Barpeta Road, Nichukha, Sorbhog, Kalgachia, Balaipathar, Kharballi, Bardanga, Kamarpara, Srirampur, Daoukmari, Jania, Chanpur, Rubi,Sawpur, Gobindapur, Moinbari and Balikuri. There are views of the river and its surroundings from the bridges situated on NH no- 31.
The Brahmaputra floods refers to a catastrophic flood event that occurred in 2012 along the Brahmaputra River and its tributaries, as well as in subsequent years.
The Puthimari River rises in Assam, India. It is a tributary of the Brahmaputra River, the fourth largest in the world. The Puthimari is known for its floods and high sediment load. Puthimari River flows through Rangia Sub-division, Hajo and Hajo Sub-division. The Baralia River, Suklai River, and Lokhaitora River is a tributery river of the Puthimari river.
The Gabharu River is a northern bank tributary of the Brahmaputra River in the Indian state of Assam. The Gabharu river originates in the Kalafangapo hills of Arunachal Pradesh in the West Kameng District and flows through Sonitpur district of Assam before its confluence with the Brahmaputra river at Gadharu Mukh of Sonitpur district. The Gabharu river consists of two right bank subtributaries known as Sonairupai river and Gelgeli river and Mora Depota river is the left bank sub tributary.
The Nona River is a sub-tributary of the Brahmaputra River in the Indian state of Assam. The Nona River originates in the hills of Samdrup Jongkhar and flows through Baksa district and Nalbari district in Assam before its confluence with the Baralia River.
