Hi, I am a resident of vasai west, mumbai and have been using airtel for the past 5 months and I already regret buying it. When I first bought the sim, the registration itself took a very pong period of a whole week when I was asured of 48 hours activation period. After that thing only got worse, as for the network it has cross connections over calls and also call dropping is a very prominent issue and the so called 4g network runs at a speed of 30kbps I regret buying this sim