Border Security Force (Water/Marine Wing) is one of the special units of Border Security Force of India. It is responsible for patrolling riverine borders in North Bengal frontier, South Bengal frontier, Andaman Nicobar frontier, Tripura - Mizoram & Cachar (TMC) Frontier, Jammu frontier, Punjab frontier and Gujarat frontier of the BSF. The Water Wing guards around 1400 km of a riverine boundary of India. its members are filled either by deputation basis or from special batches of BSF personal trained from National Inland Navigating Institute, Patna.