Can a wrong transaction be reversed?

Yes, a wrong transaction can often be reversed. Merchants can issue an authorization reversal or a refund to correct errors like being overcharged or mistakenly processed transactions. For instant payment systems like UPI, if you transfer money to a wrong address, you should immediately contact the recipient for a refund or reach out to your bank or the payment app's customer support, like Paytm, to report the error and seek recovery.