The Brahmaputra river system

Origin of Brahmaputra: This river rises in the Chemayungdung glacier in the Kailash range near Mansarovar lake. It is a transboundary river that flows through Tibet, China, India, and Bangladesh.

This river is also known as the Yarlung Tsangpo in Tibet, Siang or Dihang in Arunachal Pradesh, and Dilao in Assam.

  • The length of the river is 3848 km
  • In India, it flows for 916 km
  • The basin size of the Brahmaputra river is 651334 km².

Brahmaputra river traverses Eastward longitudinally for a distance of 1200 km in the dry and flat region of Southern Tibet and here it is known as Tsangpo. In Tibet, the main right bank tributary of this river is Rango Tsangpo.

It craves out a deep gorge in the central Himalaya near Namcha Barwa (7,755m) and emerges from the foothills as the river named Dihang or Siang.

The river Dihang enters India in the west of Sadiya town in Arunachal Pradesh. Dihang is joined by Dibang or Sikang and Lohit on its left bank, after this, the river is called the Brahmaputra. The Brahmaputra river goes through Assam valley.

  • The maximum depth of the Brahmaputra river is at Sadiya (135m)
The  Brahmaputra river basin covers the countries and states:
  • The river drains the Himalaya East of Indo Nepal Border
  • The southcentral portion of the Tibetan plateau above the Ganga basin,
  • In the southeastern portion of Tibet,
  • The Patkai bum hills
  • On the northern slopes of the Meghalaya hills,
  • The Assam plains,
  • the northern portion of Bangladesh.

Indian states are covered by the Brahmaputra river basin: Assam, Arunachal Pradesh, West Bengal, Meghalaya, Nagaland, and Sikkim.

The river enters Bangladesh near Dhubri, flowing Southwards, and is joined by the Tista from its right bank where it is known as the Jamuna and then it merges with the Padma. Here it is named Meghna and finally empties into the Bay of Bengal.

The river is well known for flood, channel shifting, and bank erosion because most of its tributaries are large that bring a large number of sediments due to heavy rainfall in its catchment area.

Tributaries of Brahmaputra river

Left Bank tributaries: Lhasa river, Nyang river, Parlung Zangbo, Lohit river, Dhansiri river, Kolong river

Right Bank tributaries: Kameng river, Manas river, Sankosh, Beki river, Raidak river, Jaldhaka river, Tista river, Subansiri river

Brahmaputra river

Brahmaputra river system

 

Tributraies of Brahmaputra river
Left Bank tributaries  Right Bank tributaries
Lhasa river

Also called Kyi Chu, the river is a northern and longest tributary of the Yarlung Tsangpo river

Kameng river

Also called Jiabharali in Assam.

Originates from the Glacial lake below snow-capped Gori Chen Mountain in Tawang district.

Nyang river Manas river

It is a transboundary river between Bhutan and India.

It is the largest river system in Bhutan.

Parlung Tsangpo

The river rises from the Arza glacier

Beki river

It is also known as the Kurisu river in Bhutan

It flows from Bhutan but its larger portion flows in the Indian state Assam.

Lohit river

The river is in India and China

It joins the Brahmaputra river in Assam

Raidak river

Also called Wang Chuu in Bhutan.

It is a transboundary river that flows through Bhutan, India, and Bangladesh.

Dhansiri river

It is the main river of the Golaghat district of Assam and of Nagaland.

Jaldhaka river

Originates from Bitang Lake or Kupup lake of Pangolakha Wildlife Sanctuary in Gangtok district Sikkim.

Also known as the Dichu river, it is a transboundary river flowing through India, Bhutan, and Bangladesh.

Kolong river

The river is also called Kailang, the river flows through districts of Nagaon, Morigaon, and Kamrup.

Tista river (Tista river)

Originates from Pauhunri Mountain of Eastern Himalayas.

It flows through the Indian states of Sikkim and West Bengal through Bangladesh and enters the Bay of Bengal.

Tista river is a 414km long river

 

Subansisri river

Originates from the Himalayas near Mount Porom in Tibet.

It is a trans-Himalayan river

Indian states: It drains the Arunachal Pradesh and Assam of Indian states.

It is the largest tributary of the Brahmaputra river.

 

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