New Delhi, March 27 -- A technical glitch affected millions of Unified Payments Interface (UPI) users for about an hour on Wednesday when the ubiquitous mobile payments mechanism was mostly offline, except for intermittent transactions going through.

Users across multiple UPI apps including Google Pay, PhonePe and Paytm and across multiple onboarding banks such as HDFC, Axis, and SBI were affected. The scale of the outage was not known. UPI had 424 million unique users in June 2024, according to a Reserve Bank of India report.

"NPCI had faced intermittent technical issues owing to which UPI had partial decline. The same has been addressed now and the system has stabilised. Regret the inconvenience," the National Payments Corporation of In...