Idea sure is providing good service through out the country. They have good network all over country and are increasing their services.Customer support is good and they are often providing good offers.But they do all these till you are new, after that you dont get much offers.
I am current user of idea network. When I bought the sim I used to get many offers as I am using much data but its been one year and now I dont get any offers plus the call rates are high and call rate cutters are expensive too. But the service is good with good internet speed and connectivity.