Can a bank reverse an UPI transaction if scammed?

UPI transactions are usually instant and cannot be canceled after the UPI PIN is entered. If you are scammed, immediately contact your bank’s fraud department and report the unauthorized transaction. You should also report the fraud through your UPI app, such as Paytm's "Help & Support," or to the National Cyber Crime Reporting Portal (cybercrime.gov.in). While success is not guaranteed, quick reporting increases the chance of resolution.