SCHEDULES
NINTH SCHEDULEProvisions as to notices
2
Where the notice or document is required or authorised to be served on any person as having an interest in land, and the name of that person cannot be ascertained after reasonable inquiry, or where the notice or document is required or authorised to be served on any person as an occupier of land, the notice shall be deemed to be duly served if—
a
being addressed to him either by name or by the description of " the owner " or " the occupier ", as the case may be, of the land (describing it), it is delivered or sent in the manner prescribed by the preceding paragraph; or
b
being so addressed, it is sent in a prepaid registered letter to the land in question and is not returned to the person by whom or on whose behalf it is sent, or is delivered to some person on that land or is affixed conspicuously to some object on that land.