This festival is celebrated by Kolam tribal inhabiting Laindiguda, Utmur Taluq Adilabad district. This falls in the Kolam month of satti. Ayak also known as Bhimana or Bhimdev, is the principal deity of the Kolams. He is represented by a carved wooden mace usually crowned with a bunch of peacock feathers, a pot containing pher or a belt of bells, marwar or anklets and small dolls made of mud. All these are kept in a thatched shed. On a Thursday, the relics of Bhimama are brought and kept in the heart of the village in a small green lead enclosure. On the first day a fowl or a goat is sacrificed. On the following day the relics of the dirty are taken to Mohamloddi, a hill stream about eighteen kilometers from the village for bathing the deity. After bringing back the deity to bath in the evening, a buffalo purchased collectively is sacrificed.

The sacrifices are done to fulfill their vows. The meat of the scarified animal is cooked and eaten by all the people of the tribe. First meal is served to all the priests. Cooked jowar mixed with the food of the sacrificed animals, goes around the village, small quantities of it on all the cornerstones and comes back. The deity is taken to its original abode the following day. This festival lasts for three days. It is confined to Kolam tribals only. They do not allow people of other communities to be present at the time of sacrifice.

Bhimana Festival is a three-day festival celebrated in Adilabad District of Andhra Pradesh by Kolam tribes. It is celebrated during the Kolam month of Satti (December). The Kolam tribes are settled mainly in the village of Laindiguda of Utmur Taluk in Adilabad District.

The tribal deity known as Ayak, also called Bhimana or Bhimdev, is worshipped during the festival. The deity is a carved wooden mace decorated with peacock feathers. It is placed inside a thatched shed. Nearby the mace, a pot containing a belt of bells, anklets and small dolls made of mud are placed. Before the festival starts, the relics of Bhimana are brought on a particular Thursday of the month and kept in the village. The beginning of the festival is marked by the sacrifice of a fowl or a goat to Bhimana. The relics of the deity are dipped on the following day in the hill-stream known as Mohamloddi. In the evening, a buffalo is sacrificed and alongside fowls and goats are sacrificed by individuals to fulfill their vows. Soon after the ritual is over, the meat of the sacrificed animal is cooked and savored by the villagers. As per another ritual, the cooked meat is placed on all the cornerstones found in various directions of the villages.