How can i hack the free gprs access in docomo.....plz anyone can tell me about this plz!!!!!!

Hacking is not the solution. TATA docomo GPRS is already one of the cheapest GPRS, they provide you 2.5GB of monthly usage for Rs. 49 GPRS pack.. I don't remember may it was Rs. 45 . You should go for Rs. 49 pack, its cheap and their GPRS services are good. I have used them so I can say that.