TUNGABHADRA, a river of southern India, the chief tributary of the Kistna. It is formed by the junction of two streams, the Tunga and the Bhadra, which both rise in Mysore in the Western Ghats. The united river for nearly all its course forms the boundary between Madras and the dominions of the nizam of Hyderabad. On its right bank stood the capital of the ancient Hindu dynasty of Vijayanagar, now a wilderness of ruins. From of old its waters have been utilized for irrigation. Near its confluence with the Kistna it supplies the Kurnool-Cuddapah Canal. A project has been recently under consideration to dam the river higher up, and there construct an artificial lake that would have an area of 160 sq. m., the cost of this scheme being roughly estimated at nearly £6,000,000.