Kalamezhuthu pattu is a folk art form that belongs to the northern regions. This form, which is 600 years old, is performed by groups of five to fifteen people in Bhadrakali and Ayyappa temples. The ritual is performed around the kolam - an elaborate picture, usually of Bhadrakali, drawn on the floor, using five colours.
The performance in the light of temple torches lasts through the night. The singers are neatly dressed with women wearing their hair on the side of the head. A series of songs (kalampattu) are sung to the accompaniment of nanthuni and elathalam.