Section - 5 - Mode of Service of Notice Under Section 1.

    (1) The notice referred to in section 1 of this Act may be served in any of the following modes-

    (a) by personal service, or

    (b) by prepaying, registering and posting the notice, addressed to the person on whom the notice is to be served at his last known postal address, or

    (c) by leaving it for him with some person apparently over the age of eighteen at his usual or last known place of abode or business, or

    (d) in the case of a corporate body or an unincorporated body of persons, by delivering it to the secretary or clerk of the body at the registered or principal office of the body or serving it by post in accordance with paragraph (b) of this subsection on the secretary or clerk at his office and in addition to any of the above cases, or

    (e) by affixing it or a copy of it to some conspicuous part of the premises in respect of which the notice is given under section 1 of this Act.

    (2) Unless the contrary is proved a notice served by post in accordance with subsection (1) (b) of this section shall be deemed to have been served at the time at which the notice would have been delivered in the ordinary course of post.