COLEROON RIVER

river in Tiruchchirappalli and Thanjavur districts, Tamil Nadu state, southeastern India, formed by the northern bifurcation of the Cauvery River at Srirangam. The river flows between South Arcot and Thanjavur districts for 36 mi (58 km) and empties through several mouths into the Bay of Bengal, 3 mi south of Porto Novo. The Coleroon is part of the Cauvery Delta, the most fertile and densely populated region of southern India, noted for its rice production. The town Chidambaram lies on its banks in Thanjavur district.