hack your NTC for using free GPRS/3G

flow the given step, step by step:-
1)you must have to be a multi system mobile in which you can minimize your apps.
2)Go in connection setting >access point and type
*connection name-Ntnet
*access point name-ntnet
*leave user name & password
*authentication-normal
3)now back and open operamini/uc/nimbuzz/any apps and browse a lot and hang it about 6 to 8 hour .
4)after that pocket data connectiö is auto cut off and you will not be charged

BEWARE
.IF U HAVE 10 RUPPES THEN DONT BROWSER MORE THAN 5 MB.