I am using paytm app for various purpose like paying my bill , tv recharges , getting mobile number recharge , transferring money , paying at petrol pump , booking ticket. I found this app to be pretty useful and fast . Sometimes there are lags in transcations which I found sometimes really annoying but all over experience for this app is awesome. Now it make me to payment very fast and I find it secure and you can save your debit or cresit card information and pay where ever you want to pay without taking out the card , you just have to rember your CVV noumber.
This app has made e-transcation to different platform where I find it very usefull in day to day activities. There are many option for the user like booking hotels etc. And you also get sometimes cashback if you reedem coupon code.