This trick is working all over india just go to
www.rcom.co.in/rcom/rworld/music/mobileCallerUser_screen1.jsp?plan=postMobileNet
Then register your number. You will
get an pin code. Just put that pin code
in
rcom.co.in/rcom/rworld/music/MobileAuthentication.jsp?AppID=109&plan=postMobileNet%2099
Now your net will be free. If didn't
work call 155223 and add code as
2084. Then it would work.