Most of the major rivers of the Indian subcontinent such as the Indus, Ganga and Brahmaputra, Kaveri, Krishna, Godavari and Mahanadi flow eastwards and empties into the Bay of Bengal after forming deltas.
The west flowing rivers of the Peninsular India make estuaries and the east flowing rivers make deltas.
Ganges Delta also known as Sunderbans Delta or Ganges Brahmaputra Delta in the Bengal region of the Indian subcontinent. This Green Delta is largest delta in the world and empties into the Bay of Bengal with combined Brahmaputra and the Ganges river.
The Ganges Delta has many river branches that creates freshwater swamp forest and Sundarbans mangroves which is home to large crocodiles, Indian python and swamp tigers in In India.
River Godavari splits into two branches again into two branches which join the Bay of Bengal. Konaseema or God’s Own Creation is the delta region Coastal Andhra Pradesh in formed by the tributaries of the Godavari river and Bay of Bengal.
Kaveri or Cauvery river is the holiest rivers in South India, Originating from Karnataka and flows through Tamil Nadu and emptying into the Bay of Bengal. Cauvery delta is one of the most fertile regions in India, the region is known as Chola Nadu and Thanjavur district is called as delta district of Tamil Nadu.
Mahnadi River Delta is heavily populated and deposits more silt into the Bay of Bengal than any other river in the Indian subcontinent. The Mahanadi flows through the Chhattisgarh and Odisha, dammed by the largest earthen Hirakud dam and also forms the biggest artificial lake in Asia.
Krishna river is one of the India’s longest river that originates near Mahabaleshwar and empties into the Bay of Bengal at Hamasaladeevi. The delta of Krishna river is one of the most fertile regions in India and along with the delta of the Godavari river is called the Rice Granary of South India.
The Brahmani and Baitarani river delta of Odisha is an adjacent portion of the Bay of Bengal. Bhitarkanika mangroves is part of the delta wetland and declared Bhitarkanika National Park and Marine Wildlife Sanctuary which is the world’s most important nesting beach for olive ridley sea turtles.
Kuruvadweep is a densely wooded uninhabited islands and a protected river delta forms by the tributaries of Kabini River in Wayanad district of Kerala.
The Cooum river originates in Tiruvallur and running parallel along with the Adyar river in Chennai. The river is highly polluted till its mouth in the Bay of Bengal.
The riverine habitat formed by west flowing rivers of India like Narmada, Zuari and Periyar and Kali River estuary. Estuaries of Paravur is known for its natural beauties, backwater locations and sand beaches.
Coringa Estuary is a marine life sanctuary and part of the Godavari estuary and backwater, second largest stretch of mangrove forests in India. The Sanctuary in the estuary of river Godavari host wide variety of birds and some critically endangered species of marine animals such as saltwater crocodile, sea turtle and fishing cat.
Mangroves are coastal trees and large shrubs found in the tidal areas near the delta, estuaries and marine shorelines. The deltas of the Ganges, Mahanadi, Krishna, Godavari and Kaveri rivers contain mangrove forest in India.
The Great Sundarbans is the largest mangroves in the world and known to serve as a marine habitat for sea turtles, saltwater crocodiles and other reptiles. Other mangroves in India are Bhitarkanika Mangroves,Pichavaram Mangroves,Godavari Krishna Mangroves and Mumbai mangroves.