1. Short title, extent, commencement and application.

(i) every existing factory where five hundred or more workers are working or were working on any day of the twelve months immediately preceding the commencement of this Act;
(ii) every new factory where five hundred or more workers arc working.
(b) The State Government may, after giving two months' notice of the intention of so doing, by notification in the Official Gazette, apply the provisions of this Act to other factories where such lesser number of workers are working as specified in such notification.
(c) It shall apply to a factory belonging to or managed by any Government except the Central Government, if such factory is a factory referred to in clause (a) or in the notification issued under clause (b).
(d) A factory to which this Act applies under clause (a) or (b) shall continue to be governed by this Act notwithstanding that the number of workers working therein falls below the number specified in clause (a) or in the notification issued under clause (b).