Ans. India accounts for the bulk of the Indian subcontinent, lying above the Indian tectonic plates. The original Indian plate survives as peninsular India. India’s coastline measures 7517 kilometres and 2094 kilometres to the Andaman, Nicobar, and Lakshwadeep island chains. The mainland coastline consists of 43% sandy beaches, 11% rocky shores and 46% mudflats, and marshy shores. It also includes major Himalayan rivers that substantially flow through India. These rivers include the Ganges and Brahmputra, both drain into the Bay Of Bengal. The important tributaries of the Ganges include the Yamuna and the Kosi. Its coastal features include marshy Rann Of Kutch of western India and Alluvial Sunderbans delta of eastern India.