Coral reefs in India are one of the most primeval and active ecosystems of India. The coral reefs not only give a sanctuary to a myriad of marine life but also play quite an important role in shielding the coastline from erosion. India has about 7517 km of coastline which comprises of islands but mainland coast is 5423 km.
Andaman and Nicobar Island is a group of islands which is present at the juncture of the Bay of Bengal and the Andaman Sea. The capital city of this territory is Port Blair. The total area covered by this land is around 8,249 km2. . It is one of the seven union territories of India. This island is quite famous for the prized shellfish. This island comprises 96 wildlife sanctuaries, nine national parks and one biosphere reserve in these islands.
The Gulf of Kutch is a cove of the Arabian Sea which is present along the west coast of India, in the state of Gujarat. This place is known for the extreme daily tides. The maximum depth of Gulf of Kutch is 402 feet. It is an area with highest probable of tidal energy generation. It is about 99 miles in length and separates Kutch and the Kathiawar peninsula regions of Gujarat. The Rukmavati River vacant itself into the Arabian Sea nearby. Gulf of Khambhat lies in the south and the Great Rann of Kutch is present in the north of the gulf. The first coral garden will be made near Mithapur in the Gulf of Kutch.
The Gulf of Mannar is a large shallow bay which forms the part of the Laccadive Sea in the Indian Ocean. It is present between the southeastern tip of India and the west coast of Sri Lanka, in the Coromandel Coast region. The chain of low islands and reefs are called as Ramsethu, also called Adam's Bridge, which consists of Mannar Island which divides the Gulf of Mannar from Palk Bay, which lies to the north between India and Sri Lanka. The estuaries of Thamirabarani River and Vaipar River of South India and the Malvathu Oya Malvathu River of Sri Lanka vacant into the Gulf. The dugong sea cow is also available there.
Lakshadweep or called as the Laccadive, Minicoy, and Aminidivi Islands is a group of islands in the Laccadive Sea, 200 to 440 km 120 to 270 mi off the southwestern coast of India. The archipelago is a Union Territory which is governed by the Union Government of India. They were also called as the Laccadive Islands, However, geographically this is only the name of the central subgroup of the group. Lakshadweep comes from Lakshadwipa, which actually means "one hundred thousand islands" in Sanskrit. The islands result in the smallest Union Territory of India. The total surface area is just 32 km2 12 sq mi.
Thus these are some of the coral reefs which are present in India.