
According to mythology, earth was dug out from the tank to build the Tirumalai Nayakkar Mahal. The place was supposed to be blessed and was later converted into a Teppakulam (tank). The tank is connected to Vaigai River via underground channels. It has total of 12 long stairs (steps) made of granite on all four sides. The temple as well as the stairs was built by the King Thirumalai Nayak.
Mariamman Teppakulam is famous for the celebrations of the Float festival, which is celebrated in the Tamil month of Thai. The festival commemorates the birthday of King Thirumalai Nayak. The celebrations take place on a full moon night and the pristine water turns colourful as the temple is lit. The deities of the temple come down to the tank in colorful floats, presenting a mesmerizing sight. Pilgrims across India come to Madurai to participate in the festival.