River Vamsadhara or River Banshadhara is an important east flowing river between Rushikulya and Godavari, in Odisha and Andhra Pradesh states in India. The river originates in the border of Thuamul Rampur in the Kalahandi district and Kalyansinghpur in Rayagada district of Odisha and runs for a distance of about 254 kilometers, where it joins the Bay of Bengal at Kalingapatnam, Andhra Pradesh. The total catchment area of the river basin is about 10,830 square kilometers. The average water yield in the river basin at Gotta barrage is 115 billion cubic feet in a year.