Porur aeri (also called Retteri in local language), or Porur lake, is located on the fringes of the suburb of Porur in south-west Chennai and is a primary water resource for people residing in Chennai. It is actually a temporary catchment area connected with Chembarambakkam Lake. It is spread over 200 acres with a capacity of 46 million cubic feet (mcft).
There are four filters working 24x7 to pump water to K. K. Nagar double tank distribution point. Bathing, Washing and/or Swimming is currently prohibited in this lake from 1995. A better view of the lake can be appreciated from the Chennai bypass
In 2012, the Water Resources Department initiated a project to increase the capacity the tank along with two other lakes in the city at a cost of ₹ 1,300 million. This would deepen the lake by at least 1 m and increases the capacity to 70 mcft.
Porur is a part (Ward no. 151 and 153 of Zone XI) of the city of Chennai in Tamil Nadu, India. It occupies a crucial position on the Mount-Poonamallee Road, Porur is known for its chemical industries, manufacturing plants, residential colonies and vegetable markets.
Porur is of great antiquity and is believed to have been existent since the Pallava period. It was upgraded from village panchayat to town panchayat on October 1, 1977. Porur is one of the fast-developing suburbs of Chennai. It was included in the Chennai Corporation by the year 2011.
The Porur Lake is the principal source of fresh water for the suburb. Porur is known for the renowned Ramachandra Medical College. Porur houses Mono-pulse Secondary Surveillance radar, one of the two radars in the city, which aids air-transport communication.
Porur is located at 13.03° N and 80.16° E, and 52 feet (15 metres) above sea level. It is bounded on the east and south-east by the Pallavaram Hills. It is located 18 km south-west of Chennai city limits on the Guindy-Poonamalee road which eventually merges into the Chennai-Bangalore highway. For administrative purposes, Porur has been included in Thiruvallur district.