As per Hindu legend, Shiva is believed to have destroyed eight different demons namely Andakasuran, Gajasuran, Jalandasuran, Thirupuradhi, Kaman, Arjunan, Dakshan and Taaragasuran. There are Ashta Veeratanam temples built signifying each of his victories in the war, and also as places where he is believed to have performed with fury.
The eight temples are: Tiruvadigai Veerattaaneswarar Temple at Thiruvadigai, Tirukkovilur Veerateshwarar Temple at Tirukoilur, Veerateswarar temple at Vazhuvur or Thirukkurukkai, Amirtagateswarar Temple at Thirukadaiyur, Vazhuvur Verateswarar Temple at Vazhuvoor, Keelaparasalur Veerateswarar Temple at Tirupariyalur, Kandeeswarar Temple at Thirukkandiyur and Tiruvirkudi Veerataneswarar Temple at Thiruvirkudi.
Shiva in all these temples are described to have used bow and arrow, trident and spear. It is one of the shrines of the Vaippu Sthalams sung by Tamil Saivite Nayanar Appar.
The temple priests perform the pooja (rituals) during festivals and on a daily basis. Like other Shiva temples of Tamil Nadu, the priests belong to the Shaivaite community, a Brahmin sub-caste. The temple rituals are performed four times a day; Kalasanthi at 7:00 a.m., Uchikalam at 10:00 a.m., Sayarakshai at 6:00 p.m. and Ardha Jamam at 8:30 p.m
. Each ritual comprises four steps: abhisheka (sacred bath), alangaram (decoration), neivethanam (food offering) and deepa aradanai (waving of lamps) for both Veerateeswarar and Bala Gujambigai. The worship is held amidst music with nagaswaram (pipe instrument) and tavil (percussion instrument), religious instructions in the Vedas read by priests and prostration by worshippers in front of the temple mast. T
here are weekly rituals like somavaram and sukravaram, fortnightly rituals like pradosham and monthly festivals like amavasai (new moon day), kiruthigai, pournami (full moon day) and sathurthi. There is a festival procession during the Tamil month of Margazhi (December- January) Thiruvadhirai festival. Gajasamhara festival during Masimagam during (February - March) followed by 10-day Brahmostavam is the major festivals in the temple.