Best Web hosting Site of India to host Asp.net website

This is not quite correct question; and even somewhat off-topic.

First and foremost, most likely, even some 100% informed person could only tell you what's the "best" only if you can defined what's "better". Because it should be better for you. And even that not always can be done. Not only the criteria is hard to define, they can contradict, and some solutions may not compare by certain criteria.

Secondly, those are commercial businesses; and I don't think it's appropriate to promote any of them on this site.

Sorry, but you should first understand what do you want very well and do your search by yourself.

Happy searching, and good luck.
--SA