Why would Satan make anybody feel that Satan does not exist?

If you don't believe then he's already got you. He doesn't have to fight for your soul, you're already on his side. But its never too late to change your mind!

His twisted thinking is that as long as one does not worhip the true God then he gets the worship. He can do much more damage if people don't believe he exists.

those poeple who deny satan are fearless of him and if one does not believe in satin makes his work more easier to make one a bad person and force him to do bad deeds without even a sigh of his presence as satan too may not be happy to be on the safe of being the victim rather than the culprit.

I think you miss the point my friend the will of Satan is the will of man, to never grow spiritually and to only want the material things life has to offer. Worship isn't really part of the equation in my opinion, its to derail man kind from growing to our full potential spiritually. If you wanted someone to never look for something higher than it would be easier to let them believe there was never anything more than what they can see with their human eyes. If Satan was to appear than of course you would be forced to reconcile that there is a God and you may begin to question reality as you know it. As you are Hindu isn't there a manifestation of a Hindu god that does the same thing? This is the same that tempted Buddha according to legends. Do I think that Satan is just a manifestation of mans evil side? Possibly but if its just in our head how did it get there to begin with?

I think that most religions feel that Satan's primary purpose is not be worshiped, but rather to prevent people from worshiping God. If people believe that Satan and Hell exists they will hold tight to the principals and rules of their religion. If they believe that he does not exist they have less incentive to follow the teachings of the church, because there is no consequence. Also if he can make people doubt his existence, it only would be logical that they would also doubt the existence of their God as well. I think that is the most popular theology.

And the same goes for the anthropomorphic God who sits out of the cosmos and controls us like puppets despite there being no causal link between the two! This God threatens us of dire consequences if we disbelieve, and He Himself falls short of providing constructive proof. Some say, it's my ego. But everything is God-gifted, ain't it? So why am I blamed and punished? As for Satan, if he's such a trouble-maker, why did the 'perfect' God create him in the first place? And religion after religion although God realizes His folly, He ain't yet successful in wiping out this devil. So Satan actually looks more powerful than the all-powerful! But seriously, the flaw you've pointed is funny! All this proves that both the God and Satan are pure fictional characters! Wait, we'll both be now slandered of being possessed by Satan! Watch.

This is one of my favorite little logical escapes fundamentalists have to offer.