The Tungabhadra is a river of southern India. It is the chief tributary of the Krishna River. It formed by the confluence of two rivers, the Tunga and the Bhadra , which rise in the eastern slope of the Western Ghats, in the state of Karnataka. The Tungabhadra flows east across the Deccan Plateau, joining the Krishna in Andhra Pradesh state, from where the Krishna continues east to empty into the Bay of Bengal.
The wedge of land that lies north of the Tungabhadra, between the Tungabhadra and the Krishna, is known as the Raichur Doab.
