Hi, Idea is a well known mobile network provider in all over india. I am satisfied with Idea network at my home and also at my work place. I am using also Vodafone network it is also a good service provider. I use Idea network for internet.
It is cheaper than vodafone internet packs and also its has a fast 3G speed. Idea has a good response team of customer care. Idea provides good voice quality. But there is big problem of call drop in all mobile service providers.