The tropical estuarine swamp forest consists of mangrove vegetation. Principal tree species are Keora, Baen, Goran etc. The vegetation provides a dense cover throughout the habitat. Along the edge of the rivers there are grassy patches.
The animals found are Chital, Wild Pigs and Rhesus monkey. Jungle Cats are sighted occasionally. Birds are numerous including the migrants that visit the Sanctuary in winter. The marshes of the island harbour estuarine Crocodile.