The structure for the biggest and heaviest of Kolams, Bhairavi Kolam, is made of panels of arecanut trees and bamboo. The skeleton of the kolam is made out of thin smoothened strips of arecanut wood. The next step is to attach the spathe cuts, painted and decorated in different sizes accordingly.

In certain places, 1001 spathes are used for making the Bhairavi kolam. And these kolams are brought to the temple in chariots and the procession is known as Chattathil Kolam.