Open the PhonePe app
Tap your profile icon or the Bank Accounts section
Select the bank account for which you want to reset the UPI PIN
Tap Reset UPI PIN or Forgot UPI PIN
Enter your debit card details as prompted
Enter the OTP sent by your bank
Set a new 4 or 6 digit UPI PIN
Confirm the new UPI PIN
Save the changes and use the new PIN for UPI transactions