Paytm is e-wallet which enable us to recharge or pay bills, etc. from our phone.It gives us cashback for recharging our phone and paying bills.Sometimes we can recharge or pay bills freely because it gives 100% cashback.
Paytmmall is also like paytm from where we can do online shopping.And from here also we can order products freely because it also give 100% cashback.
So, I think that these are best apps for paying bills, recharge and for online shopping.