Thiruppaasoor has a vast and beautiful temple for Lord Shiva. The main deity here is called Sri Vaaseeswarar and Goddess Sri Thankaadhali (தன்காதலி) Ambaal.
Even today, the poojas and rituals are performed are first performed to the Goddess and then to Lord Shiva.
It is said that Lord Vishnu took bath here in Soma Theertham and worshipped Lord Shiva to get relieved of His Dhosham. There is another shrine for Lord Shiva called ‘Vinai Theertha Easwarar’ (வினை தீர்த்த ஈஸ்வரர்), who was worshipped by Lord Vishnu.
There is a Sri Chakram in front of the sanctum, which was installed by Sri Aadhi Sankaraachaarya, for which poojas are performed regularly. Sri Subramanyar, Sri Somaskandhar & Navagrahas are found in the praakaaram. Sri Dhakshinamurthy has a small separate mandapam facing South. Sri Lingothbavar is found behind the sanctum.
Sri Vishnu Durgai, Sri Veerabadhrar and Sorna Bhairavar are found at the northern side of the praakaaram.
Thirunaavukkarasar, Thirugnaana Sambandar & Ramalinga Vallalaar have visited this temple and have sung praises on the Lord here.
There is a beautiful 4 pillared Urchava Mandapam at the outer praakaaram used for rituals during festivals.
The Sthala Viruksham for this temple is Bamboo and there are two Theerthams for this temple; Soma Theertham and Mangala Theertham.