Friends recently I switched my mobile operator from aircel to airtel just because I have heard lot about airtel, As new customer I got 1 gb 4G/3G data free but the internet speed is really very slow on 3G it even not open a gmail page when 4G net connects the speed increase drastically but the fact is that 4G works once or two times in a hour for 4-5 seconds only, so its internet connectivity is very poor on 3G network.Another issue is that even when there is full network in my mobile but still the it takes more than 7-9 seconds to connect with other mobile operator.