I use idea sim card.I.get.network all time I.doesn't get any bad.experience from them.their.customer care.service is too.good.than any outher.
Awesome its internet service is soo.fast.I.browse and.see.videos on.YouTube easily without buffering and I can browse easily and their network all over india so.don't worry.about the.calling but their recharge is.quite high if you wanted real.2g 3g 4g you should use.then.its.awesome.