How to unlock Airtel PUK Code?
By SMS
Airtel SIM Card can be unlocked via SMS, have a look at the steps below:
- Find an alternate Airtel SIM Card
 - Look for the PUK code printed on the backside of the SIM body
 - Type your locked phone number and send it to 785 via SMS
 - Now, type with PUK > <Space> 15-digit SIM number and send it to 121
 - Airtel will instantly send you an 8-digit code; this will be your PUK code
 - Enter the code into your locked Airtel mobile, and it will be unlocked
 
By USSD Code
A simple USSD code can be helpful to unlock your Airtel SIM Card:
- From another Airtel mobile number, dial *121*51#
 - Press ‘OK’ on the pop that appears on the screen
 - Similarly, another pop-up will appear on the screen
 - Select the PUK option, which will appear at number 3
 - Enter your D.O.B. to verify your identity
 - Your new PUK code will be shown to you on your screen
 - Enter it on your mobile device to unlock your Airtel SIM