Sankarankovil is a second largest municipality in the Tirunelveli district of the Indian state of Tamil Nadu. Sankarankovil is home to the famous Sankara Narayanar temple. It is situated at Tirunelveli District and 56 km away from Thirunelveli City. Sankarankovil is the second largest town in the district. It was formerly called Sankaranayinar kovil. As of 2011, the town had a population of 70, 574.