Chembarambakkam lake, is a lake located in Chennai, Tamil Nadu, India, about 25 km from Chennai. It is one of the two rain-fed reservoirs from where water is drawn for supply to Chennai City, the other one being the Puzhal Lake. The Adyar River originates from this lake. A part of water supply of the metropolis of Chennai is drawn from this lake. Chembarambakkam was known as Puliyur Kottam. It is one of the 24 kottams (villages) that existed even during the later Chola period in Thondai Mandalam which had Kanchipuram as its headquarters. The Full Tank Level is 85.40 ft (26.03 m). The Full Capacity (mcft) of the lake is 3,645 million ft³ (108million m³). The Level of the tank in feet is 75.60 ft (23.04 m). However, acute sedimentation has eaten more than 40% of its water holding strength.[2] There is an ancient Shiva temple and Kanni Koil located here.