Karaiyar Dam

Karaiyar Dam is a reservoir dam on the Karaiyar River, a tributary of the Tamirabarani, located at Karaiyar village in Ambasamudram Taluk, Tirunelveli District, Tamil Nadu, within the Kalakkad Mundanthurai Tiger Reserve in the Western Ghats. Built between 1923 and 1926, it supports irrigation and hydroelectric power generation. The dam is notable for its scenic forested surroundings, tranquil reservoir and views of the Agasthyamalai hills.

Visitors can expect a scenic reservoir set amid dense forests and hills of the Western Ghats inside the Kalakkad Mundanthurai Tiger Reserve. The site offers views of the dam structure, expansive water spread, and surrounding Agasthyamalai ranges. Access is through forest check posts with limited visitor areas near the dam. The environment is tranquil and natural, suitable for sightseeing, photography and nature observation. Facilities are basic due to the protected forest location.

Constructed between 1923 and 1926 across the Karaiyar River during the British period as part of the Papanasam Hydroelectric and Tamirabarani irrigation scheme. The dam was built to store water for irrigation in Tirunelveli district and to feed the Papanasam hydroelectric power station downstream, and remains an important component of the Tamirabarani river system.