Whenever people want to propitiate the Bhutas, a Nalke or Parava is engaged. In some places, the Nalke disguises himself as any Bhuta, but, where Paravas are also to be found, the Nalke may not dress up as the Baiderkulu, Kodamanitaya, or Rakteswari. The propitiation of the Bhuta takes the form of a ceremony called Kola, Nema, or Agelu Tambila. Of these, Kola is a periodical ceremony, in which various castes take part, and is always performed near a Bhutasthana. Nema is usually undertaken by a single family, and is performed at the house. Agelu Tambila is celebrated by Billavas at their homes. The Kola ceremony is usually performed for the propitiation of Bhutas other than the Baiderkulu. The Muktesar or chief man, with the assistance of a Brahman, fixes an auspicious day for its celebration. The jewels, and votive offerings made to the Bhutas, are kept in the custody of the Muktesar. On the Kola day, the people go in procession from the sthana to the Muktesar's house, and return to the sthana with the jewels and other articles. These are arranged on cots, and a Billava pujari places seven plantain leaves in a row on a cot, and heaps rice thereon. On each heap, a cocoanut is placed for the propitiation of the most important Bhuta. To the minor Bhutas, these things are offered on three or five leaves placed on cots, or on the floor of the sthana, according to the importance of the Bhuta. A seven-branched torch must be kept burning near the cot of the principal Bhuta. The pujari goes to the courtyard of the sthana, and piles up a conical mass of cooked rice on a stool. Over this pieces of plantain fruits are scattered. Round the mass several sheaths of plantain leaves are arranged, and on them tender cocoanut leaves, cut in various ways, are stuck. The pujari, who wears a metal belt and other jewelry, does puja to the Bhutas, and retires. The Nalkes or Paravas then advance dressed up as Bhutas, and request permission to put on their canopy (ani) and brass anklet (guggire). They then dance, and sing songs connected with the Bhutas which are being propitiated. When they are exhausted and retire, the pujari steps forwards, and addresses the assembly in the following terms:-- "Oh! great men who are assembled, with your permission I salute you all. Oh! Brahmans who are assembled, I salute you. Oh! priest, I salute you." In this manner, he is expected to run through the names of all important personages who are present. When he has finished, the devil-dancers do the same, and the ceremony is at an end.