Dear all those who have read davinci code or do crosswords are familiar with anagrams. that is reshuffling the letters of a word to form a new word with a meaning. dan brown author of da vinci code depends a lot on these.
ship and hips name and mane like that.
amutha is an anagram of uthama.( they both have the same letters and are just interchanged)
so that proves kalki put in senthan amuthan charecter with an intention. thus debunking a theory ( followed by swetha and her tribe) that kalki not knowing how to finish the novel had a brain wave (during a sirasasana) and made senthan amuthan the king.