The document discusses the Unified Payments Interface (UPI) launched by the National Payments Corporation of India. UPI allows for instant fund transfers between bank accounts using just a virtual payment address. It provides a simple, secure and cost-effective payment solution. Key benefits of UPI include ease of use where users don't need bank details, two-factor authentication for security, and lower costs for banks. The document also discusses examples of how UPI works for e-commerce payments, money transfers to family, and its growth drivers like scalability and adoption.