@prabh1665 Well then there's no surprise. I guess you have to remove that save.
Happened to me too, not too long ago. Figured it out myself, and my situation was slightly different (I was running around as a non-protagonist ped, but with hash set to Michael). Usually the game will eventually start up, after all, but with totally messed up/invisible body parts.
Also, auto-save can be a bitch! Before you realize it, you've entered OK. Which is, in itself, not a problem, really, as long as you use something like Menyoo first to switch back to Michael or any of the other main characters, and not just a ped with their hash! (As the latter will mess up their clothes/body parts on startup), and make a new save.