History of Apatsahayesvarar Temple
Alangudi is regarded as a 'Gurustalam' where Dakshinamurthy is held in great reverence, attracting huge crowds when Jupiter transits between zodiac signs. The festival image here is that of Dakshinamurthy & this stalam is held as one of the 9 Navagrahastalams.
Dakshinamurthy is said to have preached to the Devas who had swooned under the impact of the poison that came out of the churning of the milky ocean. Parvati is said to have been reborn on the banks of Amrita Pushkarini and later on reunited with Shiva. Viswamitrar is believed to have worshipped Shiva here.