Airtel is a nice operator in india, it provide wider connection over the india, and now a days airtel started 4G internet service in India.
Airtel first mobile operator in india to start 4G service, and I use this 4G service in mumbai and very very fast, its gives you 4G service on 3G price but you only have 4G supported mobile to use this 4G internet service.it gives you superfast network and it also save your mobile battery.