A villager throws the fishing net at the Sunderbans area of the Ganges Delta in West Bengal . The Ganges Delta is a river delta in the South Asia region of Bengal, consisting of Bangladesh and the state of West Bengal, India. It is the world's largest delta. As a UNESCO world heritage, the Sunderbans area of India shelters lots of mangrove forest and animals. Local people live on fishing, farming and use the ferry boats to commute. Many villages use the solar power due to lack of normal electricity supply.