Which of the following rivers is the longest river flowing entirely within the geographical boundaries of the state of Kerala?

💡 Solution & Explanation

The Periyar River is the longest river in Kerala, stretching approximately 244 kilometers from the Sivagiri hills of the Western Ghats before emptying into the Vembanad Lake. Bharathappuzha is the second longest river in the state at 209 kilometers. Pamba is the third longest, originating from the Peermade plateau. Chalakudy is renowned for its scenic waterfalls but has a shorter total length. The Periyar basin is vital for hydroelectric power generation and drinking water supply.