Thakuran River
 Thakuran River (Bengali: ঠাকুরণ নদী) (also called Jamira) is a tidal estuarine river that forms a wide estuary in and around the Sundarbans in South 24 Parganas district in the Indian state of West Bengal.It originates near Jaynagar and has a number of connections with the Saptamukhi and forms the boundary between Mathurapur and Jaynagar blocks. The Thakuran system is very wide near the sea face.