Although airtel is good mobile network.it is true but in only town and city not in village area.
My father used this network since 2006 but he recently convert this network to idea my father No is 9547062040 because in this area 3g network is not available and other reason is airtel does not give me any offer and its call rate is very high.his full talk time is also high.my area is pandas wear in west bangal.