When a registered vessel is so altered as not to correspond with the particulars relating to her tonnage or description contained in the register book, then, if the alteration is made at any port having a Registrar, that Registrar, or if it is made elsewhere, the Registrar of the first port at which the vessel arrives after the alteration, shall, on an application being made to him by the owner stating the particulars of the alteration, either cause the alteration to be registered or direct that the vessel be re-registered:
Provided that in case the vessel so altered is outside Indian port, the Registrar may on report of inspection of such vessel by a surveyor or the person authorised under sub-section (1) of section 9, re-register the vessel without any requirement of the vessel to visit Indian port.