How to activate Airtel 3G or GPRS on a new prepaid connection?

dejan

Regular
[OP]
Regulars
Apr 26, 2010
621
61
Delhi
Does it come pre-activated or do I have to do something seperately to activate it on android? I already tried typing the settings like 10 times and requested an activation for 3G but didn't get any confirmation from Airtel yet
 

dejan

Regular
[OP]
Regulars
Apr 26, 2010
621
61
Delhi
How to do that on Ice Cream Sandwich? Already have turned on internet access