Open your "Airtel Thanks" application, look for the option “Pay to Bank Account”.
Select option “Pay Bank A/C” to transfer funds to another bank account.
Select bank to Pay OR add the new beneficiary if you are going to pay a new person.
Enter Desired amount to pay and review the details and amount. Enter the transaction password to authenticate.
After proceed, enter your transaction PIN to complete the transaction.
Download transaction slip from statement history and now you can use this slip on website or wherever needed.