I was there when this started to roll this out - I remember a lot of nice pine labs payment terminals - it was really nice that I could begin to depend on my American Express card there more than trying to finagle cash (2000inr bills get you a lot of frustrated service workers). I say AmEx because they tended to work much better than my visa there.
That’s how all my non resident friends pay. They have chase bofa discover Amex etc cards that they use to pay most places. Ease of payments is the catch and credit cards bring that process down a lot. There is something psychological going on with cards that UPI and ApplePay simply don’t have. Swiping probably was fastest.
