FreeCharge is a software solution for people who want to have all the tools for various payments in a single place. Read more about FreeCharge  

There’s no need to have multiple accounts, credit cards, and paying solutions when you can get all of that in a single place, with the FreeCharge app. That means that making Prepaid, Post-paid, DTH and Electricity bill payments, and so on is easy, fast, and best of all secure.
The application is especially useful for people that don’t have a mobile subscription and just want to use their phone by simply recharging it. Also, the application comes with an integrated wallet as well, allowing its user to forego carrying cash around.
Of course, recharging the account is simple and it comes with support for Airtel, Vodafone, Idea, Reliance, Tata Docomo, Uninor, MTS, BSNL, Tata Sky, Airtel Digital TV, Reliance Big TV, Dish TV, Sun Direct and Videocon D2H, BESCOM, BSES Delhi, BEST Mumbai, Reliance Energy, MSEDC and many others.