The Coleroon River is a significant waterway located in the southern part of India. It is a distributary of the Cauvery River, branching off near the town of Kumbakonam. The river flows through the Thanjavur district and eventually merges back into the Cauvery near Pattukkottai. The Coleroon River plays a vital role in irrigation, supporting agriculture in the surrounding regions. It is also important for local ecosystems and provides water for various communities along its banks. The river's health is crucial for sustaining the livelihoods of many farmers and residents in the area.