Open the Airtel Thanks app
Log in with your Airtel mobile number
Check the home screen for your active plan details
Dial 121 from your Airtel number
Follow the IVR or select the plan details option
Send an SMS with BAL to 121
Check the reply for your balance and plan information
Use the Airtel website and log in to your account
Check your account dashboard for the current plan
Call Airtel customer care and ask for your active plan details