Most of the pilgrims who make holy trip to Trupathi usually visit Srikalahasti which is about 30 km from here. Srikalahasti town is known for its historical Kalahastishvara temple.
Built in the Vijayanagar architecture style, it has three magnificent gopurams that are a fine example of the architecture of that time. Though it is considered to be a Shiva temple, it is also the place where devotees first worship Pathala Vinayaka, a manifestation of Lord Ganesh.
There is an underground chamber which one can access from the northern gopuram. One needs to go down a narrow staircase consisting of about 20 steps to reach the temple. There one can offer prayers along with coconuts to Pathala Vinayaka, who is considered to be the protector of the pathala or netherworld.
A devotee who wants to offer prayer to Pathala Vinayaka has to stand in a long queue. During the day and night, there is a long queue of devotees lining up to have a glimpse of Pathala Vinayaka. A devotee has to bend and kneel down and move towards the main entry door of Pathala Vinayaka temple.
Normally fat persons and people with knee pain or joint pain finds it hard to make an entry towards this temple. Once a devotee gets through the small door then he or she has to get down the ladder projected towards down to the underground platform. A pujari is appointed to give offering to Pathala Vinayaka. After giving offering to Pathala Vinayaka, a devotee has to climb up the ladder and come out through the same small entry door of Pathala Vinayaka temple.