UPI Explained: Meaning, Types, Process, and Use Cases
Unified Payments Interface, or UPI, is the payment infrastructure that transformed everyday money movement in India. It allows instant bank-to-bank transfers through mobile apps, QR codes, and UPI IDs, making digital payments simple for consumers, merchants, banks, fintechs, and even capital-market workflows. To understand UPI properly, you should think of it not as a single app, but as an interoperable payments rail with major operational, business, and regulatory importance.