Airtel.sarvotam network.
This line is not correct absolutely because airtel is good but not every time. This network is very popular and it is also good like its network coverage is very good and it connects every time but its customer services are not good sometimes and airtel mobile network is very costly whether its internet bills or calling bills. I also using airtel so I know its vices and virtues. Its internet packs are so costly and call rates are so high but I m using this because of its network coverage.