Which of the following rivers forms an estuary rather than a delta upon emptying into the Arabian Sea?

💡 Solution & Explanation

The Narmada river flows westward through a rift valley between the Vindhya and Satpura ranges and empties into the Arabian Sea via an estuary rather than a delta. Rivers on the eastern coast like the Mahanadi, Cauvery, and Godavari deposit silt over gentle slopes to form extensive deltas. Geography questions frequently contrast peninsular rivers flowing into the Arabian Sea with those flowing into the Bay of Bengal. The absence of alluvial sediment prevents western-flowing rivers from building traditional deltas.