About midnight, he saw a fire ball splitting light, in the midst of which was a Shivalinga being worshipped by Devas and Rishis.
He showed the king the place where the Shivalinga was hiding and disappeared in the form of a fire ball.
When viewed from an elevated position, it is said that the idols combined together looks like the OHM letter shape.
There are 10 pillars in the inner corridor (prakara) of the temple producing 10 different musical sounds if tapped with a dry sandal stick.
The ten-day Thaipoosam and Brahmmotsavam in January-February is the longest and important festival of the temple with special pujas and the presiding deity coming in car procession.
On the 9th day, Panchamurthis and Mother Kamakshi come in procession in two separate Rathas in the streets of Chettikulam.
Aadipooram in July-August, Vinayaka Chaturthi in August-September, Navarathri in September-October, Surasamharam and Deepavali in October-November, Tirukarthikai in November-December, Margazhi festival and Tirvadhirai in December-January, Sivarathri in February-March and Chitra Poornima in April-May are other festivals celebrated in the temple.
The temple is highly revered as an abode of solution for various problems faced by devotees in matters of health, litigations, recovery of lost things, trade etc.
Devotees perform special abishek (thanksgiving) to Lord and Mother with milk, curd, lime fruit juice, sandal, oil, green coconut offering vastras and they also undertake some kind of fasting.