Q. Which of the following are tributaries of the River Kosi?
  1. Sun Kosi
  2. Arun
  3. Tamur
Select the correct option using the codes given below:

Answer: 1, 2 & 3
Notes: Sun Kosi, Arun, and Tamur are the three major tributaries of the River Kosi. The Kosi is a trans-boundary river originating in Tibet, flowing through Nepal, and entering India in Bihar. After collecting waters from these tributaries, it joins the Ganges River near Kursela in Katihar district.