The Pennar River is a significant river in southern India, primarily flowing through the states of Karnataka and Andhra Pradesh. It originates from the Nandi Hills near Bangalore and travels approximately 597 kilometers before merging with the Bay of Bengal. The river is known for its seasonal flow and is an essential water source for irrigation in the surrounding regions. The Pennar River basin supports various ecosystems and is home to diverse flora and fauna. Several dams, including the Krishna Raja Sagara Dam and the Somasila Dam, have been constructed along the river to manage water resources and support agriculture.