(1) Every notice, order or direction issuedunder this Act shall, saveas otherwise expressly provided in this Act, be served,-
(a)by giving or tendering the notice, order or direction, or by sendingit by past to the person for wham it is intended; or
(b)if such person cannot be found, by affixing thenotice, order or direction an same conspicuous part of his last known place ofabode or business, or by giving or tendering the notice, order or direction to same adult male member or servant of his family or by causing it to be affixedon someconspicuous part ofthe building or land, if any, to which it relates.
(2) Where the,person an wham a notice, order or direction, is to be served is a minor, service upon his guardian or upon any adult male member of his family shall be deemed to be the service upon the minor.
(3) Every notice, order or direction which by or under this Act is to beserved as a public noticeorder or direction which is not required to be servedto any individual therein specified shall Save as otherwise expressly provided, 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.