Q. Which of the following river is known as “Sorrow of Bihar”?

[A] Teesta River

[B] Kosi River

[C] Mahananda River

[D] Burhi Gandak River

Answer: B

Explanation: In the Himalayan reaches, the course of these rivers is highly tortous, but over the plains they display a strong meandering tendency and shift their courses frequently.

  • River Kosi, also known as the ‘sorrow of Bihar’, has been notorious for frequently changing its course.
  • The Kosi brings huge quantity of sediments from its upper reaches and deposits it in the plains.
  • The course gets blocked, and consequently, the river changes its course.

Source: NCERT – Fundamental of Physical Geography