I mostly use Freecharge application for paying my mobile bills, landline and electricity bills. The best thing about this application is that it gives you a lot of exciting offers every time you make payment for your bills.
One issue which I feel there is that for every offer they give they have one condition use your debit card or credit card to redeem that offer. If we have a wallet their in there website why to redeem a offer we need to make a transaction with debit or credit card. Apart from this it gives you nice offer always.