Located in Theppakulam, Madurai.
The tank is 1000 feet long and 950 feet wide. There is a mandapam cum Lord vigneshwara temple in the center of the tank. This is the location where the king Thirumalai Naicker excavated the soil to fabricate the bricks required for constructing his palace, Thirumalai Nayacker Mahal.
The pit that was thus formed is seen as tank now. It is approximately equal to that of Meenakshi Amman Temple, which was built in 1645 A.D. This is the biggest tank in Tamil Nadu.
It is believed that 7 feet tall Mukuruny Vinayagar idol in Meenakshi Amman Temple is believed to be found during the excavation process of this pond. During festival season, this tank is filled with water and decorated with lights . This float festival is celebrated here on the Full moon day in the midst of January and February the tank turns colorful, which is a feast for the eyes of the visitors