Follow The steps
1) Go to settings > mobile networks > acess
point
names.
2) Make new profile Name: Tata DoCoMo
3) APN:- blackberry.net
4) Save it. Recharge your sim with small BBM
pack
(Check BBM Plans/Call Custmore Care).
(Rs 12 pack recomended).
5) Go to Google Play Store Search for Droid vpn
for android.
6) Install Droid Vpn in you android device. Set
UDP
port 53 or 9201 and click connect.
Now Enjoy Free 3g Internet On Tata Docomo
Via UDP