Create new access point and save as default settings with the below given informations...
APN: MyAircel
Proxy:172.017.083.069
Port:8080
Home page: http://abgindia.blogspot.com
Note: the Sim which your trying to access free GPRS should be at least 1 year past
Tested in Orrisa
Just try in your state....!
Would love to here from you...