https://www.businessinsider.in/tech/apps/news/hdfc-banks-net-banking-upi-services-and-atms-down-due-to-data-centre-outage/articleshow/79344484.cms
HDFC Banks net banking, UPI service and ATMs were down due to a 'data centre outage' but RBI demands more detailed information | Business Insider India
HDFC Banks customers were reporting unable to conduct transactions using net banking and UPI payments platform. The bank has stated that the problem is due