relax its 5 mins work in three easy steps:
1. If you have another airtel number than dial 121, otherwise google the area-wise number of customer care which is of 10 digits and can be called from other numbers.
2. Get a service proider talking
to you then Ask for ur PUK number from the service provider
3. He/she will ask for ur authentication.. and then ask for the number which at the back of ur SIM card. On correctly giving it you will get ur PUK code and PIN code.