4. Amendment of section 56, Central Act No. 63 of 1948.-

In section 56 of the principal Act,- (i) the existing provision shall be numbered as sub-section (1); and (ii) after the sub-section (1) so numbered, the following new sub-section shall be added, namely:- "(2) Notwithstanding anything contained in sub-section (1), the State Government may by notification in the Official Gazette, increase the spread over up to 12 hours inclusive of his intervals for rest in respect of any group or class or description of factories on such conditions as it may deem expedient, due to the provision of flexibility in working hours as specified in sub-section (2) of section 54."