Tags: Dam.
The Thenmala dam is the second largest irrigation project in Kerala India. It impounds the longest reservoir in the State and water from the reservoir is also used for power generation.The dam was started in 1961 under the Kallada Irrigation and Tree Crop development project with an original cost of Rs. 13.28 crores and revised estimate of Rs. 728 crores at the 1999 schedule of rates the cost escalation reported is 5356 per cent.