The 9.31 km², 33.53 m deep Amaravathi reservoir at Amaravathinagar is located close to Indira Gandhi Wildlife Sanctuary. Situated around 25 km away from Udumalpet in Pollachi, the reservoir was the creation of the 90 feet high Amaravathi Dam which was built across Amaravathi River in the year 1957. Primarily built for irrigation and flood control purpose, the Tamil Nadu Electricity Board during the years 2003-04 proposed to install 4 MW electric generating capacity from the dam.

The structure of the dam and a well laid out park near the reservoir attracts lot of tourists and the place has been developed as District Excursion center for Tourism. Several types of fish, specially the non-indigenous fish, tilapia are preserved in the reservoir.