First you need to get a lot better (no offense intended, ofc)
How to play in world championship?
I don't know about becoming world champion, I think you're in over your head on that one... But if you want to get a rating and work on getting a title, you can start by playing an over-the-board tournament in your area. Most places that aren't too remote have chess clubs or similar organizations that run tournaments fairly regularly, so with a little digging I would guess you could find a tournament and get a rating.
I am from india, does anybody know how to play in world championship titles? Where to start from?