Airtel Useful USSD codes

This Are

Airtel Balance check:*123#
2G net balance:*123*7#,*123*10#
3G net balance *123*11#
Sms pack :*555#,*777#
Daily sms count :*123*5#
Grps pack : sms MRP GPRS to 51619
Special offers/packs:*222#