Which river forms a delta in the Bay of Bengal?

Correct answer: Godavari

The direct answer is A: Godavari. A delta forms when a river reaches a relatively calm sea, slows down and deposits much of its sediment near its mouth. Godavari flows eastward across the Deccan and enters the Bay of Bengal, where its distributaries spread sediment and build a delta. Option A is correct because the Godavari is one of the major east-flowing Peninsular rivers that forms a delta on the eastern coast. Option B, Narmada, flows west through a rift valley and generally forms an estuary at the Arabian Sea rather than a large delta. Option C, Tapi, also flows west into the Arabian Sea and is associated with an estuarine mouth, not the delta pattern asked here. Option D, Sabarmati, is a western-flowing river entering the Gulf of Khambhat and is not the standard answer for a major delta in the Bay of Bengal. The memory cue is: east-flowing Peninsular rivers, especially Godavari, Krishna, Mahanadi and Kaveri, commonly build deltas on the eastern coast. Do not assume every river makes a delta; mouth conditions matter.