In your O P, if you or anyone else came up with foolproof evidence for all of this airy fairy stuff about religions I would take religious belief in the very next moment, can't see that ever happening and for me I've yet to see anything that would make me want to even investigate these religions; some of the stories are amusing that's about all.
Where are all of these religions going in the end, think about it we don't hear much about Zeus, Thor, Minerva and plenty of etc's they've all gone, admittedly you'll always get one or two oddballs still going for them, but they've definitely all gone and it doesn't say much for the future of the remaining few.
Now Sriram, give yourself a treat and take a venture into neurology there're quite a few books out there written about the experiences these people have had to deal with during the course of their work.
I've managed to find some books on the subject, there's plenty there, written for those of us with an average ability to understand, obviously not me of course, but they do show just how far this thing in between our ears is capable of manufacturing so much within our imaginations, however reading up on the subject for yourself would be by far better than any of the angles I can describe or put to you.
Regards to you Sriram, ippy