Consider the following for the definition of principal employer under Inter-state Workmen Regulation Act, 1979.
1. It is the head of that office or department in any department of the government.
2. In a factory, the owner or occupier of the factory and where a person has been named as the manager of the factory under the Factories Act, 1948.
3. In a mine, the owner or agent of the mine and where a person has been named as the manager of the mine.
4. In any other establishment, any person responsible for the supervision and control of the establishment.