The temple is located on the Northern banks of Poondi reservoir on the Thiruvallur - Thiruthani road, 11 km (6.8 mi) away from the town.

The temple complex covers an area of one acre and all its shrines are enclosed with concentric rectangular walls.

In modern times, the temple is maintained and administered by the Hindu Religious and Charitable Endowments Department of the Government of Tamil Nadu.

The temple was moved to the current location in 1942 to ease the construction of Poondi reservoir by the then Mayor of Madras Sathyamurthy.

The central shrine facing East houses the image of Oondreswarar in the form of Lingam.

[2] Sundarar, an 8th-century Tamil Saivite poet, venerated Oondreswarar in ten verses in Tevaram, compiled as the Ninth Tirumurai.

The temple rituals are performed three times a day; Kalasanthi at 8:00 a.m., Uchikalam at 12:00 a.m. and Sayarakshai at 6:00 p.m. Each ritual comprises four steps: abhisheka (sacred bath), alangaram (decoration), naivethanam (food offering) and deepa aradanai (waving of lamps) for Oondreswarar and Gnanambigai.