A Shaligrama - which has the marks of a shankha, Chakra, gada and padma arranged in a particular order - is worshiped as Keshava. With the change in the order of the four symbols, the name of the Shaligrama stone is also different and the images of such deities also have similar setting of the four symbols. The various orders and names are given for the twenty four permutations. These are well known names, which are the different names by which Lord Vishnu is known in the Hindu pantheon. The various versions of the Saligrama Shilas or stones vis-a-vis the order of the four symbols are: