To reverse a UPI transaction, contact your bank or UPI service provider's customer support promptly with the Unique Transaction Reference (UTR) number, date, and amount.
If the recipient is from the same bank, the bank can directly request them to reverse the transaction. If they're from a different bank, your bank can provide branch details for you to contact the recipient's bank manager.
If the recipient doesn't respond or the bank can't recover the funds, file a complaint on the NPCI portal.
If the issue remains unresolved for more than 30 days, escalate it by contacting the Banking Ombudsman for assistance.