The Aliyar River is a significant waterway located in the western part of Tamil Nadu, India. It is a tributary of the Bhavani River and plays a crucial role in the region's irrigation and agriculture. The river originates from the Western Ghats and flows through various landscapes, providing water to nearby villages and towns. The river is also known for the Aliyar Dam, which was constructed to harness its waters for hydroelectric power generation and irrigation. The dam creates a reservoir that supports local ecosystems and offers recreational opportunities, making the Aliyar River an important natural resource for the surrounding communities.