1) Factories Act - Working Hours and Holidays Under Factories Act 1948 | Indian Labour Laws & Shram Suvidha Simplified
2) Payment of Wages Act
3) Shops and Establishment Act :- https://shopsandestablishmentactsindia.quora.com/
Now as you have not mentioned the nature of business activity it is difficult to elaborate. So just go through the links.
15th February 2017 From India, Kolkata