UPSC Prelims 2016 Question:

Which of the following is/are tributary/ tributaries of Brahmaputra?

1. Dibang 
2. Kameng 
3. Lohit
   
   

Select the correct answer using the code given below:

Explanation: 

• The Brahmaputra river originates from the Kailash ranges of Himalayas. After flowing through Tibet, it enters India through Arunachal Pradesh and flows through Assam and Bangladesh before it joins the Bay of Bengal. In this course, river is joined by many tributaries which are as follows:
  
  

• Left Bank Tributaries: Desang, Dikhow, Dibang, Dhansiri , Kopilli, Dhdhnoi, Jinjiran, Lohit are the main tributaries on the left bank of the river Brahmaputra. So, points 1 and 3 are correct.
  
  
• Right Bank Tributaries: The tributaries namely Subansiri, Kameng, Dhansiri, Puthimari, Manas, Sonkosh are the main tributaries on the right bank. So, point 2 is correct.
  
  

Therefore, option (4) is the correct answer.

Subject: Geography | Drainage Basins