Sundarban is the largest delta in India. The Sundarbans are a part of the world's largest delta formed by the rivers Ganges, Brahmaputra and Meghna. They are vast tract of forest and saltwater swamp forming the lower part of the Ganges Delta, extending about 260 km along the Bay of Bengal from the Hooghly River Estuary in India to the Meghna River Estuary in Bangladesh. Sunderban covers an area of 4262 sq. km in India.
Sunderban is a unique ecosystem dominated by mangrove forests and gets
its name from the Sundari trees. Sunderban is spread over 54 islands and
two countries. It is one of the last preserves of the Bengal tiger and
the site of a tiger preservation project.