Employees' off day in a week

No employees shall be allowed or required to work-

(a) on a close day, in any establishment which is required to observe a close day; and

(b) on one day in a week, in any other establishment; and

(c) before the opening hour of the establishment and after closing hour of the establishment;

Provided that a watchman may be allowed or required to work on an off day under this section if he is allowed another off day in the week.