The river originates near Lanjigarh in the Kalahandi district of Odisha at an elevation of 400 meters and runs for a distance of about 278 kilometers, and joins the Bay of Bengal at Kalingapatnam, Andhra Pradesh.

The average water yield in the river basin at Gotta barrage is 115 billion cubic feet in a year.

[1] Vamsadhara river basin occupies 8015 square kilometers in Odisha and the remaining 2815 km2 flows in Andhra Pradesh.

Andhra Pradesh and Odisha roughly estimated that 115 thousand million cubic feet (TMC) of water is available for use in the river.

[4] Also, Orissa has raised objections to Neredi barrage project on the grounds of land submergence in its territory during unprecedented floods.

[6] The tribunal pronounced its draft verdict in September 2017 and permitted AP state to construct the side weir at Katragedda and Neradi barrage.

[7] The tribunal also upheld the sharing of 115 tmc ft total yield at Gotta barrage between AP and Odisha in 50:50 ratio as per the agreement reached between the states on 30 September 1962.

[15] It will run from Hiramandalam reservoir to Narayanapuram barrage near Amudalavalasa and bring an additional 50,000 acres of ayacut under irrigation using 10 Tmcft of water from Vamsadhara basin.