Match the following major hydroelectric dams in Kerala with the rivers upon which they are constructed: List I (Dam): 1. Idukki Dam, 2. Mullaperiyar Dam, 3. Banasura Sagar Dam, 4. Idamalayar Dam. List II (River): A. Periyar River, B. Periyar River (Arch Dam), C. Karamanathodu River, D. Idamalayar River. Select the correct matching code:

💡 Solution & Explanation

The Idukki Dam is a double curvature arch dam built across the Periyar River between the Kuravan and Kurathi hills. The Mullaperiyar Dam is a masonry gravity dam situated on the Periyar River upstream of Idukki. Banasura Sagar Dam, the largest earthen dam in India, is constructed across the Karamanathodu River, a tributary of the Kabini. Idamalayar Dam is built across the Idamalayar River, a major tributary of the Periyar. These installations form the backbone of Kerala's renewable energy grid.