Online portal is on the top at present time. To do online transactions we use atm cards, net bankings and also the third party apps. Towards the way of digital india, RuPay supports a good hand on this way of digital india. But you should be know that the maximum transactions failed is done by debit cards. Under the case RuPay cards are on the top of failed transactions. I had a RuPay and visa debit cards. I noticed that the ratio of success of transaction on visa cards are more than the RuPay cards.
so for secure online transaction with higher success rate I recommend you to use visa debit cards.