Correct Answer: Cauvery

Solution : The correct option is Cauvery.

The Mettur Dam is located on the Cauvery River in the Salem district of Tamil Nadu, India. It is one of the largest dams in India and plays a crucial role in irrigation, power generation, and flood control in the region. The Cauvery River flows across four states—Karnataka, Tamil Nadu, Kerala, and Puducherry—and holds immense geographical and cultural significance in India. The Mettur Dam, constructed in 1934, regulates the flow of the Cauvery, providing water for irrigation on vast agricultural lands in Tamil Nadu.