Aircel is very bad network its not available inside room and college classroom. The data service something good but calling service is very bad and aircel customer service j
Too much bad because they always activate value added service and charged rupees for that service.
Its bad I faced very problem on aircel like automatic charged balance form main account. And calling voice not clear always trapped voice and data service good because the 3g internet speed is good.
You can buy it for 3g.