I have been using airtel for 2 years and its only because of its good range reception in my area.But now things have changed my phone could barely receive airtel signal in my house moreover they have not yet slashed their 3G prices even though they have started 4G services in Mumbai.
It is very bad on airtel’s part to reduce the 3G speeds and provide 4G under that hood.So basically its useless to buy a 3G pack.One can receive 4G if the person is near a satellite tower or else its the 2G that one has to adjust with. Airtel has degraded its quality with the passing years and its going for the worst rather shift to vodafone which has started to provide good 3G speed and also at a lesser price.