Claim: Perumpallam Dam was built in the 1980s, it measures roughly 2 km long and is fed by rainwater from the Kadambur Hills and the Bhavani River which is located in the Silent Valley.
Evidence: It was built in the 1980s. It measures roughly 2 km long and 40 metres in height and occupies 65.29 hectares of land. It is fed by rainwater from the Kadambur Hills and the Bhavani River. Bhavani river originates from Nilgiri hills of the Western Ghats, enters the Silent Valley National Park in Kerala and flows back towards Tamil Nadu.