Central Government Act
Section 52(1) in The Factories Act, 1948
(1) No adult worker shall be required or allowed to work in a factory on the first day of the week (hereinafter referred to as the said day), unless--
he has or will have a holiday for a whole day on one of the three days immediately before or after the said day, and
the manager of the factory has, before the said day or the substituted day under clause (a), whichever is earlier,--
delivered a notice at the office of the Inspector of his intention to require the worker to work on the said day and of the day which is to be substituted, and
displayed a notice to that effect in the factory: Provided that no substitution shall be made which will result in any worker working for more than ten days consecutively without a holiday for a whole day.