Kallu Basadi is called as Stone Basadi because it is made up of stone.
Kallu Basadi is a Basadi built of only stones. Every part of the Basadi is made of only stones. Formerly the Chandranatha Swami was the presiding deity of this Basadi; and in its place, there is now the statue of Sri Sheethala Natha Swami, cut in a rare variety of stone, its color being a blend of white and brown. The predecessor Swamiji of the Math had celebrated Panchakalyana of this Basadi. Underneath the earth a lot of palm-leaf literature was found and the same is kept in the library of the Mutt called "Shrutha Bhandara".