Rarely some temples exist beyond 1000 years and also famous in particular ways as thiruannamalai and chidambaram.A temple in a place called kovilur in thiruvarur district is so famous such that it is called as aadhi chidambaram.
Amman is called as Periyanayagi.This temple is a special place as Lord Rama has worshipped lord siva here to get knowledge about mantras to win ravana.
Thiruannamalai is a sacred place such that people who thinks about it will attain mukthi.Like that people who think about kovilur will get victory.Such is the greatness of this place.
Lord siva here as manthirapureeswarar can be seen in white colour here and is called as amirtha lingam. Students who want excellent knowledge in veda can worship lord siva here.