(i) India has many small and large islands along the coast of the mainland. These are included in the coastal island group.
(ii) Besides, India has two large group of islands, one each in the Arabian Sea and in the Bay of Bengal.
(iii) The islands in the Arabian Sea are known as Lakshadweep whereas the islands in the Bay of Bengal are called the Andaman and Nicobar Islands.
(iv) Most of the islands in Lakshadweep are atoll islands.
(v) They are small in extent and not very high.
(vi) Islands in the Andaman group are mainly volcanic islands.
(vii) They are large with hills in their interior parts, which includes an island called Barren Island which has the only active volcano in India. There are atolls in the Nicobar group too.
