Open the PhonePe app
Tap your profile icon or bank account section
Select the bank account for which you want to set the UPI PIN
Tap Set UPI PIN or Reset UPI PIN
Enter the last 6 digits of your debit card
Enter the card expiry date if asked
Enter the OTP sent to your registered mobile number
Create a new UPI PIN
Re-enter the UPI PIN to confirm
Tap Submit or Confirm
Your UPI PIN will be set successfully