Which one of the following regions of India has a combination of mangrove forest, evergreen forest and deciduous forest?

(a) North Coastal Andhra Pradesh — Mangroves occur in deltas like Godavari-Krishna, and deciduous forests are common, but this region is not known for a clear evergreen-mangrove-deciduous combination. Verdict: Incorrect.

(b) South-West Bengal — Sundarbans provide mangroves, and deciduous forests occur inland, but tropical evergreen forests are not a characteristic feature of south-west Bengal. Verdict: Incorrect.

(c) Southern Saurashtra — This is largely dry deciduous/thorn scrub region; mangroves are limited and evergreen forests are absent. Verdict: Incorrect.

(d) Andaman and Nicobar Islands — These islands have extensive mangrove forests, tropical evergreen forests, and also deciduous forests in parts. Verdict: Correct.