I came to know about Payumoney from the BookMyShow discount offers and then there on I started using it for other transactions such as electricity bill payment and other E-comm website such as BigBasket,
Payumoney has partnered with many E-comm. Companies such as Redbus, BookMyShow, BigBasket & others
They provide support to small website owners with their payment gateway
Payumoney app is also quite easy to use, especially the password recovery feature has been very useful to me since I am quite bad as remembering them,
I have never faced any issues of missing Transaction with Payumoney, it has helped me save money.