The State Government may, after consulting the Advisory Committee, by notification in the Official Gazette, and subject to such condi tions and for such period 28 as may be specified in the notification, exempt from the operation of all or any of the,provisions of this Act or any Scheme made thereunder, all or any class or classes of Security Guards employed in any factory or establishment or in any class or classes of factories or establishments, if in the opinion of the State Government, all such Security Guards or such class or classes of Security Guards are in the enjoyment of benefits, which are on the whole not less favourable to such Security Guards than the benefits provided by or under this Act or any Scheme made thereun der: Provided that, before any such notification is issued, the State Government shall publish a notice of its intention to issue such notification, and invite objections and suggestions in respect thereto and no such notification shall be issued until the objec tions and suggestions have been considered and a period of one month has elapsed from the date of first publication of the notice in the Official Gazette: Provided further that, the State Government may, by notification in the Offi cial Gazette, at any time, for reasons to be specified, rescind the aforesaid notification.