Service of notices, etc.

(1) Every notice, order or direction issued under this Act shall, save as otherwise expressly provided in this Act, be served— (a) by giving or tendering the notice, order or direction, or by sending it by registered post with acknowledgement due to the person to whom it is intended; or (b) if such person cannot be found, by affixing the notice, order or direction on some conspicuous part of his last known place of abode or business, or by giving or tendering the notice, order or direction to some adult member of his family or in the absence of any such member, on a servant of the family, and, if such service is not possible, by affixing the notice, order or direction on some conspicuous part of the building or land, if any, to which it relates. (2) Where the person on whom a notice, order or direction is to be served is a minor, service upon his guardian or in his absence upon any adult member of his family or in the absence of both upon any servant of his family shall be deemed to be service upon the minor. (3) Every notice, order or direction, which by or under this Act is to be served as a public notice, order or direction or as a notice, order or direction which is not required to be served to any individual therein specified shall, save as otherwise expressly provided in this Act, be deemed to be sufficiently served if a copy thereof is affixed in such conspicuous part of the office of the competent authority or in such other public place during such period or is published in such local newspaper or in such other manner, as the competent authority may direct.