The pillars of the mandapams in the temple are full of exquisite sculptures and carvings. Thiruvalam Sri Mouna Guruswamigal installed a new "Panchavarna Navagraha" idol in the temple. The Brahmotsavam or the main festival is celebrated in the Chithirai month. The temple was renovated three years ago and the Kumbabishekam took place on February 11, 2000.
The presiding deity in the Perumal Temple is known as Vaikundavasa Perumal. The Moolavar idol was worshipped by Sage Valmiki, Lava and Kusa, according to legend. There is no Rajagopuram, but beautiful "Dasavathara" images are found at the main entrance. There are separate shrines for Kanakavalli Thayar and Andal. Unlike in other temples, where Vaikunda Perumal will be found in the sitting posture, the Moolavar idols of the Lord and His Consorts here are in the standing posture. The Utsavar is known as Azhagiasingar and there is an unconfirmed report that the Thelliyasingar deity in the Parthasarathy Temple at Thiruvallikeni, was kept here during the alien invasion or due to some riots in the area. The Utsavar is found flanked on either side by Sridevi and Bhoodevi. The Utsavar images of the Goddess, Andal, Sudarsana, Azhwars, Vishwaksenar and Ramanuja are also worshipped here.
The temple is famous for its beautiful images of Sita and Rama. While Rama is found wearing a dress made from tree bark and is without a crown as he was found when he spent 14 years in the forest, the image of Sita is like that of any ordinary woman with her hairdo in what is known as "Kodali Kondai" as she stayed in Valmiki's Ashram. The holy water source is called as the Kusa-Lava Theertham and the "sthala vriksham" is the pipal tree. There is an ancient manuscript of the Ramayana in Telugu letters and its title is Vaithya Ramayanam and it is well preserved. The main festival is celebrated for 10 days in the Tamil month of Ani. Special festivals are held almost every month. This temple also dates back to the period of Kulothunga Chozhan III.