is one of the five famous saiva kshetras recorded in many legends,
the others being, Kedaram, Srisailam, Srikailasam and
Arekathangavalam. Tirugnanasambandar adored. the Lord and composed
verses. Indra worshipped this Mahadev to tide over the menace of
demons, who caused insurmountable troubles to amaravasis. The
archarmurti is called Nilachalanathar and Mother Parvathi,
Nilambikai. It is moderate in dimension, yet contains all the parts
like tower, garbha griha etc.