Airtel must stop itself propagating as Smartphone network company. They are not. At times when they are selling 4G connections, they are not able to provide proper service to 3G network also in city like Bangalore in locality like HSR Layout.
Improper service desks, unresponsive network team, unreliable and no control on vendors and that says all about Airtel as company. They are already losing subscribers and will continue to unless they genuinely try to improve their services.