Use the Airtel Thanks app and check the usage or call history section
Log in to Airtel self-care on the Airtel website and view call details
Request a detailed call statement from Airtel customer care
Visit an Airtel store or service center with valid ID proof
Use SMS or USSD services if available for your Airtel circle
Check the monthly bill if you are on a postpaid plan
Note that call detail records are usually available only to the account holder
Contact Airtel support for the exact process in your region