the hooghly river ganga is an 260 km long river. it is a distributary river of ganges river. farakka barrage a dam diverts water from ganges into a canal near the town of tildanga of murshidabad district. this canal supplies hooghly river with adequate water. the river has two tributaries: the rupnarayan river and damodar river. hooghly also reaches bay of bengal at nurpur and then empties into the sea.