As per Factories Act, 'Factory' means any premises in during the precincts thereof where on or more workers are working or were working on any day of the preceding 12 months, and in any part of which a manufacturing process is being carried out with the aid of power, or is ordinarily so carried on. [Sec 2(m)(i))

Industrial relations is about the relationship between the administration and the employees of an organization at the workplace. 
Minimum Wages Act, 1948, Factories Act, 1948, Maternity Benefits Act, 1961, Payment of Bonus Act, 1965 are some important labor laws in India.