How to check Airtel balance?

Airtel is one of the most popular network operator in India. It provides calling, internet and many other facilities. To check your Airtel number main balance dial *123# and in moments you will get your balance information. To know various offers given by Airtel, you can dial *121#. There is one more method to check Airtel balance. Download Airtel App. Sign in and you will have access to your Airtel balance and other related datas.