Coral reefs in India can be found in

Explanation:

Coral reefs are a type of underwater environment made up of colonies of coral polyps that are bound together by calcium carbonate.
These coral reefs can be found in India's Palk Bay region.
They aid in the protection of coastal lines from storms and erosion, as well as providing food and medication.
They safeguard coastal areas by lowering the strength of the waves that impact the shore.

Final Answer:

Hence, the correct option is (c) Palk bay