I was used other network these operators gives you lots of promises and offers whenever you got this sim or oprator you faces lots of issues like internet speed, network ranges, voice an video qualities all are noot so good . OKULA says airtel was indias fastest network and 4G speed of AIRTEL was excellent than other . Bharti Airtel had over 413 million customers across india, Its gives us AIRTEL DTH facilities 7.9 million customer used this in india.