Sri-Ona-Gandeshwarar-Temple is a Lord Shiva temple amids the temple town of Kanchipuram.
The temple is a padal petra sthalam and the Lord Shiva here is worhsipped by Sundarar.
The temple has three lingams of Lord Shiva- Sri Oneswarar, Sri-Gandeswarar and Sri Jalendeswarar.
According to legends, three Asuras- have worshipped Lord Shiva here with their own lingams here in barren land. Sundarar – when he was on the way realized this and decided to build a temple for the three lingams. He sang hymns on Lord Shiva and got money and built the temple.