Arkavathy River or Arkavathi River, is a river originating at Nandi Hills of Kolar District and is an offshoot of the Cauvery River. After flowing through the Kolar and Bangalore rural districts it merges at the Kanakapura confluence. Kolar District is situated in the state of Karnataka, India and belongs to its semi-arid drought prone region. ... The Cauvery River (also spelled Kaveri or Kavery) is one of the great sacred rivers of India. ... Kolar District is situated in the state of Karnataka, India and belongs to its semi-arid drought prone region. ...
Large dams were constructed across the river for irrigation at Krishna Raja Sagara in Karnataka and at Mettur in Tamil Nadu.
The Bhavani River joins the Kaveri at the town of Bhavani, where the Sangameswara Temple, an important pilgrimage spot in southern India, was built at the confluence of the two rivers.
The Amaravati River joins the cauvery at a place called Tirumukkudalur near Karur.Sweeping past the historic rock of Tiruchirapalli, it breaks at the island of Srirangam into two channels, which enclose between them the delta of Thanjavur (Tanjore), the garden of South India.