Being a user of paytm.com if I can explain paytm in one line then it will be that Indias best and so fast online payment site.
Some time I forgot to carry my wallet with me and then I add money in my paytm wallet and pay from it to the seller and sometime I buy some product like fashion product from paytm.com
I will like to say what I had done through paytm.com
Mobile Recharge.
DTH Recharge.
Online ticket booking- flight and train.
Shopping.
Pay money to shop by using QR code.
Good opportunity is that high level interest on paytm bank savings and fixed deposits money.
Money transfer to any kind of bank in India.