The important function of the festival is Theerthavari.
Idols of deities of temples of AdhiKumbeswarar, Abimukeswarar, Nageswaran, Kasivisvanathar and Banpureeswarar besides other shrines were taken in a procession to the Mahamaham tank bank and Theerthavari held.
Kumbakonam is famous for the Mahamaham festival that occurs once in 12 years.The Mahamaham festival falls in 2016.