Dial `*#21#` to check unconditional call forwarding
Dial `*#61#` to check forwarding when unanswered
Dial `*#62#` to check forwarding when unreachable
Dial `*#67#` to check forwarding when busy
Wait for the on-screen message showing the forwarding status
Check your Airtel call forwarding settings in your phone’s Call Settings menu
Contact Airtel customer care if the USSD codes do not work on your device