Thimmamma Marrimanu is a 550 years old banyan tree, 100kms from Anantapur. Spreading over an area of about 5 acres, it is regarded as the biggest in South India with about 1100 prop roots.
It is named after the Thimmamma, who was considered to be a saintly woman. There is a small temple under the tree dedicated to this lady. Apart from being religiously important, this place makes a good picnic spot. This tree occupied its name in the Guinness Books of World Records as being the largest banyan tree in the year 1989.
Every year, there is a big Jatara (procession) conducted during Shivarathri and thousands of devotees take part. It is considered very auspicious to attend this procession.