- The Brahmaputra basin spreads over Tibet (China), Bhutan, India, and Bangladesh.
- The total length of the Brahmaputra River is 2,900 km, and in India, it is 916 km.
- In India, the basin spreads over Arunachal Pradesh, Assam, West Bengal, Meghalaya, Nagaland, and Sikkim, which is nearly 5.9 % of the total geographical area.
- The Brahmaputra River originates in the Chemayungdung glacier of the Kailash range near Mansarovar Lake in Tibet, where it is called the Tsangpo (‘the purifier’) or Yarlung Zangbo.
- It carves a deep gorge in the Central Himalayas near Namcha Barwa and turns southwards. Then, it
- enters India through Arunachal Pradesh as Siang or Dihang.
- After receiving its main left bank tributaries, Dibang (or Sikang) and Lohit, the river is then known
- as the Brahmaputra.
- The Brahmaputra enters Bangladesh as the Jamuna River, where it joins the Ganga (Padma in Bangladesh) and continues to flow as the Padma.
- Padma finally joins Meghna River, which falls into the Bay of Bengal.
- The confluence of the Ganges, Brahmaputra, and Meghna Rivers forms the Sundarbans delta.
- Right bank tributaries: Rango Tsangpo (in Tibet), Subansiri, Kameng (Jiabharali), Dhansiri, Manas, Sankosh, Teesta.
- Left bank tributaries: Lohit, Dibang, Burhidihing, Disang, Dikhow, Dhansiri, Kopili.

|