Theerthamalai is a popular pilgrim centre close to Hogenakkal. One of its most popular destinations is the Theerthamalai temple. Lord Theerthagireeswar, a form of Lord Shiva is the worshipping deity.
It is believed that Lord Ram worshipped Lord Shiva at this temple to absolve him of the sin of killing so many demons, after his victory over Rvana. Therefore, it is believed that a dip in these holy waters can help man rid himself of sins committed against others.