Paytm is best e commerce site which provide you online shopping at its best I m using paytm since 4 years it is totally diffrent from all others e commerce site.
Paytm is also provided his app for android and ios. In this app you can do your reacharge on dth, mobile. Its provided its own wallet by which u can recharge or do shopping. You can add cash on this wallet through your bank account also.
During demonstization paytm has becomes very useful for cashless payment. You dont have to need carry cash if u have paytm.