Koch Rajbongshis is a community mainly located in

A. Assam

B. Tamil Nadu

C. Gujarat

D. Karnataka

Explanation:

Union Home Minister Amit Shah visited Assam and West Bengal, where he addressed a community vital to upcoming Assembly elections in both states — the Koch Rajbongshis. Today, Koch Rajbongshis are found in Assam, Meghalaya, West Bengal and Bihar, and in Bangladesh, Nepal and some parts of Bhutan. They are estimated to number over 33 lakh in West Bengal, mostly the northern districts, and have a large presence in Assam.