Porthamarai Teertham is one of the most revered of sacred tanks situated at Kumbakonam
in Thanjavur District
. Situated at the front of the Adi Kumbeswara Temple, this tank possesses much cultural and religious value as compared to other nearby tanks. Literally Porthamarai Teertham means the ‘lotus tank’. As the Goddess Komalavalli of Sarangapani Temple is believed to have materialized from this tank on a lotus, the tank came to be known in its present name of Porthamarai Kulam.
Nearby attractions include Mahamagam Tank, Paga Teertham and three ghats namely
Pagava Teertham and Chakkara Teertham. Kumbakonam is well connected by road with Trichy, Thanjavur and other nearby cities and towns. Kumbakonam Railway Station is the nearest railway station and the nearest airport is at Trichy (95 km).