Walk into almost any shop in India today, a kirana store, a pharmacy, a roadside food cart and you'll see the same thing. A small QR code taped near the counter, and a shopkeeper who barely looks up when you scan it. Nobody asks "cash or card" anymore. That everyday habit, repeated billions of times a month, tells you most of what you need to know about where India's payments market is headed. The numbers now confirm what that scene suggests. UPI hasn't just become popular. It has quietly taken over the checkout counter, at the direct expense of cards.