Hello,
I am using the airtel service around nine years. In a starting year service of a company are high as compared to another . But 3 to 4 year company gives attractive offers because of we are not switch to another services. In roaming areas signal of connection is good compared to another. After period of time company to talk to valuable customer talk about their plan which suitable for customer not for a company.
Company also provides discount to customer which paid regularly payment of a bill without any delay. Unique feature in postpaid plan is a family plan which also reduced the bill upto 10%.
Over all service of this provider is very good.