Salam.
As per my understanding...
for a Punjab registered vehicle biometric is needed for the application for transfer of ownership but the actual transfer happens when the vehicle is inspected by the E&T inspector who goes through the file (having the original invoice) and also previous registration book/card. Upon finding everything to be in order he then updates in the system details of the new owner and orders a new smart card.
So if the original invoice is not available (meaning the file is not complete) the person in whose name the vehicle is shall have to apply for duplicate from E&T recoreds and then the vehicle shall be able to undergo transfer of ownership.