Section 288(6) in Chennai City Municipal Corporation Act, 1919
(6)More than nine workers shall not be simultaneously employed at any time in any factory, workshop, work-place or premises, unless the permission granted in respect thereof under sub-section (3) authorizes such employment or unless fresh permission authorising such employment has been obtained from the commissioner. Before granting such fresh permission, the commissioner shall obtain the approval of the inspector of factories, referred to in clause (a) of sub-section (4), as regards the plan of the factory, workshop, work-place or premises with reference to the matters specified in that clause.