Question

Which rivers forms the eastern most boundary of the Himalayas ?
1. Ganga
2. Brahamputra
3. Teesta
4. Kosi

Answer 1

Correct Answer - Option 2 : Brahamputra

The correct answer is the Brahmaputra.

• The Brahmaputra river marks the easternmost boundary of the Himalayas.
• This originates from Mansarovar Lake, which is also a source of the Indus and Sutlej.
• It is 3848kms long, a little longer than the Indus River.
• It flows parallel to the Himalayas in the eastward direction.
• When it reaches Namcha Barwa, it takes a U-turn around it and enters India in the state of Arunachal Pradesh.
• Here it is known as the Dihang River. 
• This river is called the Yarlung Tsangpo in Tibet.
• It is the ninth largest river in the world by discharge.

Kosi River	It drains the northeast slopes of the Himalayas in Tibet and the southern slopes in Nepal. The Kosi river is known as the sorrow of Bihar
Ganga River	Ganga as 2525 km is the longest river in India
Teesta River	It is a 414 km long river that rises in the Pauhunri Mountain of eastern Himalayas. Flows through the Indian states of Sikkim and West Bengal through Bangladesh and enters the Bay of Bengal. It drains an area of 12,540 km².