It took nearly a month to activate. First I bought this sim just to use for 3 month and then was planning to through it out but when the packs were out I think I will now stick with it. I mean the packs are completely different from others. They are costly but if you see your monthly expense its only a little more than that and then we are getting 4G service guys. Voice is truly free but you can hardly call anyone cause the network is worst for the time being. But I should say Mukesh Ambani has got some really good guys sitting at the customer care service.
TIP: To keep track of your data limit count it from the time your sim was activated not daily.