India, April 25 -- India's digital payments ecosystem has expanded rapidly, with the Unified Payments Interface (UPI) becoming central to everyday transactions. Operated by the National Payments Corporation of India, the system processes billions of payments each month. While it is designed for speed and ease, users still encounter failed or delayed transactions. These issues are not random glitches but signs of how the system behaves under heavy demand.

UPI functions as a network connecting apps, banks and a central switching system. When a user initiates a payment, the request moves from the app to the sender's bank, then through NPCI's infrastructure, and finally to the recipient's bank. Each step must be completed within seconds.

Be...