Step:-1) Make sure your balance is less than 1 .Rs (It is safe)
Step:-2) Make As Below New GPRS Setting In Your Mobile
Step:-3) APN: celloneportal
Step:-4) Proxy: 192.168.87.163
Step:-5) Port: 8080
Step:-6) Homepage: http://google.com
Step:-7) Now Save The Settings And Restart Your Mobile.