Direct answer
UPI PIN means you may be paying
If the screen asks you to approve, pay, send, mandate, autopay, request, collect, or enter UPI PIN, slow down. Receiving money does not require your UPI PIN. A scammer may call it refund, buyer payment, cashback, salary, delivery payment, or verification.
Safe rule
Confirm only final credit
Open your own bank, wallet, or UPI app. Money is received only when your own history shows a final credited entry for the right amount. A request screen, screenshot, or caller explanation is not proof.
If debited
Move to official routes fast
If you approved a collect request and money was debited, contact your bank or UPI app through official support, call 1930 for recent financial cyber fraud, and keep the cybercrime.gov.in complaint trail aligned.