I used to use Airtel service on my cell phone and when I used to go out to some trip. I had a nightmare of this airtel network because when u go out of ur city. The network coverage is worst and even u try to an emergency call to someone over there u can’t because of worst network coverage out there.Then if recharge ur phone with 2gb Internet pack the net pack will be exhausted within one day even if u don’t use it much and if u check ur phone data status they will show u that u have wasted 1.4 gb of ur data. Then where is 600 mb gone it is simply Airtel’s fault. They will consume ur 600 mb. Then there are subscription, even if the customer don’t subscribe to something like for example- caller tune. They say that u have subscribe and they will charge u. I have changed my network to Vodafone and it simply doing well. Network coverage is best. Net spped is good and they won’t consume your data.