Which of the following rivers does not form a delta?

Answer: [C] Narmada

Conditions for delta formation by a river:

  • The river must have gentle gradient in its lower course
  • The river must carry large amount of sediments along it
  • The coastal plains or area where mouth of river lies should be wide

Though Narmada originates far from Western Ghats and empties into the Arabian Sea, the river flows through a rift valley at a steep gradient which increases its speed. Also, the west coastal plains are less wider than that required for delta formation by Narmada.

This question is a part of GKToday's Integrated IAS General Studies Module