I am using idea networks for almost 4 years.
My experience says it is the best network in the country. Its tower range is maxmium every where you go you will find idea network its my personal netwok when I visit pali a goan in rajasthan no network I found but idea.
Their topup recharge , talktime recharge are very suitable from young to old age people.
You can find every single detail from from their customer support department, they are also very goog talented people.
Internet speed is very good.very easy to load and upload your data in a very genuin price