6. Method of service of notice.

(a) When the owner is a company or a firm or any director or principal officer of the company or any member of the firm or by addressing the same in the name of the Company or firm at its registered office or place where it carries on business in India;
(b) When the owners is a person or a group of persons (not being a Company or a firm), on the person or the group of persons at the usual or last known place of abode or business of such person or group of persons or by addressing the same in the name of the factory or concern or by addressing the same by designation, e.g. Manager/Proprietor/Occupier; or
(c) When the owner is a Government or Semi-Government agency, on any principal officer responsible for the affairs of the establishment by addressing the same either by name or by designation, and such service shall be deemed as good service against the person or group of persons, firm or Company, or a Government, or Semi-Government agency, as the case may be.