The Sundarbans mangrove forest one of the largest such forests in the world (140000 ha) lies on the delta of the Ganges Brahmaputra and Meghna rivers on the Bay of Bengal. Sundarbans UNESCO’s World Heritage site inscribed in 1997. The site is intersected by a complex network of tidal waterways mudflats and small islands of salt-tolerant mangrove forests and presents an excellent example of ongoing ecological processes. The area is known for its wide range of fauna including 260 bird species the Bengal tiger and other threatened species such as the estuarine crocodile and the python. This mobile application provides the history of Sundarban animals diversity heritage plant diversity and geographical structure. Besides this you can get information regarding tourist tour operator and the citizen charter of the department of forest in Bangladesh