How do I report a fake transaction to UPI?

To report a fake UPI transaction, immediately contact your bank's customer care or use their mobile app to lodge a complaint. You can also file a complaint through the UPI Dispute Redressal Mechanism on the National Payments Corporation of India (NPCI) official website. Alternatively, you may report the incident to the National Cyber Crime Reporting Portal or call the helpline at 1930. Paytm also suggests using its app's customer support for reporting.