Thiru Koneshwaram was built by sage Agasthyar as per the instructions of Lord Shiva who was impressed by the devotion of King Ravana. This place has the uniqueness of the lord building a temple for his devotee as a reward for his devotion. Lord Rama also offered his prayers on his return to get himself rid of the Brahmaasthi Dosham. Shakthi peedam Adjacent to Koneswaram temple there is another small shrine; with some significance for Hindu pilgrims. The original Shankari Devi temple, said to be built by Ravana, was the first in the list of Ashta Dasha (18) Shakti Pitas written down by Adi Shankara, but its whole cliff was destroyed by Portuguese cannon balls. Only a pillar for commemoration is placed on that spot now. And it is believed that the original idol of the Goddess has been preserved and replaced, being venerated now in this nearby new Shankari Devi temple.