Presiding deity-sayambumurthy graces the devotees facing east.  The temple has a 3 tier Rajagopuram.  Vinayaka of the temple is praised as Lord Vellai Vinayaka.  There are shrines in the prakara for Lords Vinayaka, Muruga,Bhairava, Lingodhbava, Nataraja, planets Sun, Moon and Sani Baghwan, Mothers Gajalakshmi and Durga, Sage Agasthya and Idumban.

Devotees pray for removal of obstacles in wedding talks, to defeat enemies and freedom from fear of death.

A demon, Idumban by name bathed in the sacred spring of the temple and worshipped Lord Shiva seeking total salvation.  Relieved of all his past sins, he married one Idumbai, hence the name Idumbavanam to the place.  Saint Tirugnana Samabandar visited this place during his pilgrimage from Vedaranyam to Madurai.  As he saw Shivalingas in every particle of the sand of the place, he walked through the place by his hands keeping the legs up, according to a story of the place.

This is also one of the places where Lord Shiva granted His wedding darshan to Sage Agasthya.  The Wedding posture of Lord Shiva with Mother Parvathi is depicted behind the presiding deity in the sanctum sanctorum.  During his stay in the place, Sage Agasthya sprayed the water in his Kamandala (a hand bowl carried by sages) on Deva Sharma and his wife who became demons due to their sins.  Also, when one Gunabaran brought the ashes of his father to this place, he saw his father blessing him and attaining salvation.  The place is considered very sacred for attaining salvation.  Lord Yama the God of Death, to relieve himself from the curse of Lord Shiva for throwing the fate rope on Sage Markandeya by worshipping Lord in this place.   This is a place of worship for relief from the fear of death.  

The idols of Mother Gajalakshmi, Lord Dakshinamurthy and Sani Baghwan – planet Saturn are made of a single stone.  The place has greater importance as Lord Sri Rama worshipped the Lord here to win Ravana.

Lord Vellai Vinayaka graces with Siddhi and Buddhi made of sea foam.  Performing abishek to Him with rose water and milk brings all benefits to the devotee, it is believed.

Once, the gentle traits (Satva Guna) of Lord Brahmma began to decline due to the curse of Lord Shiva.  To regain the character loss, Brahmma took on a pilgrimage to Shiva sthalas.  Pleased with his efforts, Lord Shiva granted darshan in His wedding form with Mother Parvathi, Vinayaka and Muruga.  Hence, Lord Shiva is praised as Sarguna Nathar – Lord of Gentle Characters.  Lord Brahmma created a spring – Brahmma theertha and launched the festival, Brahmmotsava in Vaikasi-May-June.