How to reverse an UPI transaction?

You cannot cancel a UPI transaction after the PIN is entered. If the transfer was incorrect, first contact the receiver for a refund. If unsuccessful, you must raise a complaint immediately through your bank's customer support or the official NPCI UPI complaint number (1800-120-1740) within 48 hours for timely redressal. Alternatively, file a complaint on the official NPCI website under the Dispute Redressal Mechanism.