Sankarankovil is a Municipality in the Tenkasi district in the Indian state of Tamil Nadu.

Sankarankovil is home to the Sankara Narayanar Temple, which was built by Ugra Pandiyan in 900 BC.

Thus, it is held sacred by Saivites and those Hindus who believe that Shiva and Vishnu are a single deity.

Srivaishnavites of Tamil Nadu who worship Vishnu only do not accept this and hence reject the temple.

Devotees believe that Sankarankovil's Nagachunai (sacred tank) was dug by serpent kings named Paduman and Sangam, and has a miraculous power to heal those who bath there.

According to 2011 census, Sankarankoil had a population of 70, 574 with a sex-ratio of 1,012 females for every 1,000 males, much above the national average of 929.

Nearly 4000 powerlooms are directly involved in producing various kinds of textile products such as terry towels, cotton saris, lungis, handkerchiefs, etc.

The main bus routes are to cities / towns like Tirunelveli,Virudhunagar, Madurai, Tuticorin, Nagercoil, Tenkasi, Rajapalayam, Srivilliputhur, Sivakasi, Surandai, Kalugumalai, Thiruvenkatam, Valliyur, Courtallam, Shencottah, Theni,kumili,Papanasan, Ambasamudram, Kanyakumari, Tiruchendur, Rameshwaram, Tirumangalam, Aruppukottai, Kovilpatti, Sivagiri, Kayathar, Sattur, Nanguneri, Ettaiyapuram, Karivalamvandha Nallur and so on.

Sankarankovil has state transport (SETC) bus routes to Ooty, Munnar, Madurai, Chennai, Coimbatore, Trichy, Palakkad, Calicut, Dindigul, Hosur and so on.

Sankarankovil RTO was opened by chief minister Ms. J. Jayalalitha via video conference.