_____________ means in relation to an establishment being a mine (or an establishment wherein persons are employed for the exhibition of equestrian, acrobatic and other performances) the Central government and in relation to any other establishment.

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.