India's Unified Payments Interface (UPI) implements a significant upgrade, boosting transaction speeds by up to 66%. The National Payments Corporation of India (NPCI) reduces processing times for API functions: Request Pay/Response Pay time is now 15 seconds, while transaction reversals are down to 10 seconds. This overhaul aims to enhance system efficiency and reliability across platforms like Google Pay, PhonePe, and Paytm, ensuring swift, error-free transactions for millions of users.