Airtel Mobile Operator is the best largest open network in India as compare to another network, Even in hill area it provides a good network. I a using airtel operator since last 4 years, it gives best offers plans for costumer and good services as promise but it is not sometimes affordable. Customer services provides affordable and best offers to their new customers only but after sometimes it charges more for sms, calls and internet facilities. But network is strong as compare to another mobile operator and service is also good.