There are several types of Pongal Kolam designs. There are line kolams, where there is the free hand drawing of lines to make a geometrical pattern. Pulli (dots) are arranged in a specific sequence and order & these pullis are joined to make pictorial designs. In the pulli kolam type, there is an another type of forming twisted chains by linking one loop with the next & forming wonderful designs with the basic pattern. This is called Chuzhi kolam.