I am using aircel postpaid connection in Mumbai from last 2 months and I surprised it have good connectivity in all over Mumbai with a very good tariff offer by aircel but its sucks when you travel in Maharashtra as in Manny areas of Maharashtra aircel is still not reached !
Tariff plans :-
I am using 149 plan its a per sec billing in which 12000 sec ( appr. 200 mins ) free all local and 149 sms free all over India if you will take add on pack of Rs. 30 they will charged you 1p for 2 sec for all local calls ( means 30p per min) and if you will take 5 connections inter calling is absolutely free ! its a good advantage on aircel call center sucks sometimes as may be they don’t have updates and they are new but it doesn’t matter as we don’t need to call customer care regularly.
I am using Vodafone also its a best service provider in Mumbai but having a very high calling charges compared to aircel. So go bindas for aircel its rocks in Mumbai !