India, July 19 -- At a time when many nations are searching for affordable and scalable financial systems, India is no longer only participating in the global technology conversation, through the Unified Payments Interface (UPI), it is shaping it. When it started, in April 2016, UPI processed 20,000 transactions. By April 2026, India's UPI ecosystem has over 500 million active users, making it one of the world's largest real-time digital payment networks. Few technologies have scaled at this pace, reached this many people, and then gone on to influence financial systems beyond their home country. UPI has done all three. Despite its rapid growth, the UPI revolution remains uneven.

Nine years after its first transactions, UPI is no longer ...