This is a User generated Hack, mailed me yesterday. Not Sure whether it works in all states are not. The reader who had send this mail hadn't disclosed his/her State. By the way there is nothing like taking risk when it comes to Hacking :P
There isn't much to do, except to alter the default Internet Settings' provided by Tata DoCoMo.
Access Point : tata.docomo.live.in
Proxy : 010.124.094.009
Port : 8080
Home Page : http://mobhacks.mofuse.mobi
Do Note that the balance should be maintainted between 0.01 to 0.09 Rs. Happy Surfing time, DoCoMo Users. Follow back through comments.