Correct Option
The correct option is 1, 2 and 3 only
Explanation
The Brahmaputra river system is one of the largest in the world. In India, it flows through the Assam Valley from east to west. Consequently, tributaries originating from the Himalayas in the north are Right Bank tributaries, while those originating from the Patkai range or Naga hills in the south are Left Bank tributaries.
Statement-wise Analysis
- 1. Subansiri: Correct. The Subansiri is a major right-bank tributary that originates in the Himalayas (Tibet) and flows south through Arunachal Pradesh before joining the Brahmaputra in Assam.
- 2. Kameng: Correct. The Kameng River originates in the Himalayas in the Tawang district of Arunachal Pradesh. It flows south and joins the Brahmaputra on the right bank near Tezpur.
- 3. Manas: Correct. The Manas River is a transboundary river in the Himalayan foothills between southern Bhutan and India. It flows south and joins the Brahmaputra on its right bank at Jogighopa.
- 4. Burhi Dihing: Incorrect. The Burhi Dihing is formed by the confluence of the Dihing and other streams originating from the Patkai Hills in the south. It joins the Brahmaputra on the left bank.
Key Takeaway
Right Bank Tributaries: Subansiri, Kameng, Manas, Sankosh, Teesta.
Left Bank Tributaries: Burhi Dihing, Dhansiri (South), Dibang, Lohit.