Where it is declared by this Act that an Indian ship shall not be recognised as such, that ship shall not be entitled to any privileges, benefits, advantages or protection usually enjoyed by Indian ships or to use the Indian national colours for Indian ships or to assume the Indian national character, but so far as regards the payment of dues the liability to fine and forfeiture and the punishment of offences committed on board such ship, or by any person belonging to her, such ship shall be dealt with in the same manner in all respects as if she were a recognised Indian ship.