Thiru Thanka or Thoopul is one of the 108 divya desam temples situated in Kanchipuram. The perumal in this sthalam is called 'Deepa prakasar'( Deepam- light) or 'Vilakoli perumal' (Vilakoli - light).
The legend behind the place Thiru Thanka goes like this. Lord Brahma wanted to perform Aswamedha Yaagam in Kanchipuram. Asuras wanted to stop that yaagam. The Asuras stopped the light by covering the sky and spread the darkness. To save the world and the yagam Sriman Narayanan appeared there as a "Light" and cleared the darkness. Since the Lord Narayana appeared like a bright light, the Perumal here is called as "Deepaprakasar". Deepam means light and Prakasam is brightness. Since the Perumal shone like light, He is also called as "Vilakku Oli Perumal".
The Moolavar here is Sri Deepa Prakasar or Vilakoli Perumal in a standing position facing West. Thayar of this sthalam is Maragathavalli thayar.
There is a sannadhi for Vedantha Desikar (this is his birth place), where he is found with Gnana Muthirai and a sannadhi for Lakshimi Hayagreevar is also found.
Mangalasasanams The temple is revered by the verses of Tirumangai azhwar
Temple Timings The temple is open from 7:00 AM till 10:00 am and from 5:00 pm till 7:00 pm
How to reach?
Kanchipuram is around 75 kms from Chennai off the Chennai- Vellore/ Bangalore highway via SriPerumbudur. Kanchipuram is well connected by several bus services from Chennai. There is a railway station in Kanchipuram with a few train services from Chennai in the mornings.