Nagavali River

The River Nagavali also known as Langulya is one of the main rivers of Southern Odisha and Northern Andhra Pradesh States in India, between Rushikulya and Godavari basins.Origin and CourseNagavali River rises in the eastern slopes of the Eastern Ghats near Lakhbahal in the Kalahandi district of Odisha at an elevation of about 1300m. The geographic co-ordinates of the river are north latitudes 18 10 to 19 44 and east longitudes of 82 53 to 84 05. Niyamgiri hills where Bauxite mining is proposed are located in Nagavali river basin.The total length of the river is about 256km, of which 161km are in Odisha and the rest in Andhra Pradesh. The catchment area of the basin is 9510km2. Nagavali is an interstate river with 4462km2 and 5048km2 river basin area located in Odisha and Andhra Pradesh respectively. The river basin receives 1000mm average rain fall annually. The uplands of the river basin are hilly areas with predominantly tribal populated. It drains parts of the Kalahandi, Rayagada and Koraput districts of Odisha and Srikakulam, Vizianagaram districts of Andhra Pradesh.