The hills are a site of pilgrimage, because of the Arapaleeswarar temple, which is believed to have a secret path to the Shiva temple in Rasipuram. This Shiva temple is said to have been built by Valvil Ori in the 1st or 2nd century CE when he ruled this area. "Arappaleeswara sathakam" is a poem which praises Lord Arappaleeswarar. It is believed that this temple existed during the Sangam period itself.