1. Brahmaputra 
  2. Kali
  3. Dihang
  4. Tista
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1 Answers

Option 1 : Brahmaputra 

The correct answer is the Brahmaputra.

  • One of the biggest rivers in the world and a significant river in Asia is the Brahmaputra.
  • It is a transnational river.
  • The river spans around 2900 km.
  • The Brahmaputra is a braided river originating in southwestern Tibet it is called the Yarlung Tsangpo River. 
  • It traverses the Himalayas and extends as Dihang into Arunachal Pradesh.
  • It marks the easternmost boundary of the Himalayas. 
  • The Brahmaputra widens as it approaches Assam.
  • In India, it flows for 916 km. T
  • The principal tributaries of the river joining from the right are the Lohit, the Dibang, the Subansiri, the Jiabharali, the Dhansiri, the Manas, the Torsa, the Sankosh and the Teesta whereas the Burhidihing, the Desang, the Dikhow, the Dhansiri and the Kopili joins it from left.
  • About 19,300 cubic meters per second is the river's average discharge rate.
  • The river is prone to avulsion and channel migration.
  • The river has a tidal bore, making it one of the most significant rivers in the world.

  • Kali:
    • At an elevation of 3,600 meters, in the Pithoragarh region of Uttarakhand, India, the Kali River, also known as the Sharda River and the Mahakali River, has its origin at Kalapani in the Himalayas.
    • The river features six significant dams, 325 types of vegetation, and 190 species of fauna, and is as old as the Western Ghats.
  • Dihang:
    • The Dihing River is a tributary of the Brahmaputra. It originates in the eastern Himalayas in the Patkai mountain range and flows through Arunachal Pradesh, Tinsukia and Dibrugarh districts of Assam before finally merging with the Brahmaputra in Dihingmukh.
    • The Dihing has a number of oxbow lakes in its course.
  • Tista:
    • It is another tributary of the Brahmaputra originating from Cholomo Lake Sikkim and flowing through the Himalayan ranges to enter Bangladesh and merge into the Brahmaputra as one of its tributary in Bangladesh.
    • The river creates a boundary between Sikkim and Bangladesh and the overall length of the river is 315 km.
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