JUDGMENT CHANDRAMAULI KR. PRASAD, J. Leave granted. Air India Limited was constituted under the Air Corporations Act, 1953. By virtue of Section 3 of the Air Corporations (Transfer of Undertakings and Repeal) Act, 1994, Air India has vested in Indian Airlines Limited. It has Ground Services Department at Indira Gandhi International Airport, Delhi. Respondent No. 2 is Hotel Corporation of India, which is a Government Company incorporated under the Companies Act. The authorized share capital of the Hotel Corporation of India, hereinafter referred to as the Corporation, is Rupees 10 crores, divided into 10 lakhs equity shares of Rs. 100/- each. The Corporation is a wholly owned subsidiary of Air India and its entire share capital is held by Air India and its nominee. Excepting 6 shares, 4,99,994 shares have been subscribed by Air India and rest by its nominees. Air India controls the composition of the Board of Directors and appoints Directors in consultation with the Government of India. The power to remove the Directors from office before the expiry of the term is vested with Air India, in consultation with the Government of India, so also the power to fill up the vacancies caused by death, resignation, retirement or otherwise. General management of the Corporation is vested in the hands of the Managing Director. Notwithstanding that, Air India is conferred with the power to issue such directions or instructions as it may think fit in regard to the finances and the conduct of the business and affairs of the Corporation. Duty has been cast upon the Corporation to comply with and give effect to such directions and instructions. The main objects for which the Corporation is incorporated are large and include carrying the business of hotels, motels, restaurants, cafés, kitchens, refreshment rooms, canteens and depots etc. in general and its incidental and ancillary objects are establishment of catering and opening hotels, which would tend to promote or assist in Air India’s business as an international air carrier. Respondent No. 3, Chef Air Flight Catering, hereinafter referred to as ‘Chef Air’, is one of the units of the Corporation. Section 46 of the Factories Act, inter alia, confers power on the State Government to make rules requiring a specified factory where more than 250 workers are ordinarily employed, to provide and maintain a canteen for the use of the workers. Section 46 of the Factories Act, inter alia, confers power on the State Government to make rules requiring a specified factory where more than 250 workers are ordinarily employed, to provide and maintain a canteen for the use of the workers. In exercise of the aforesaid power, Rules 65 to 71 have been incorporated in the Delhi Factory Rules, 1950, hereinafter referred to as ‘the Rules’. Rule 65(1) was to come into force in respect of any class or description of factories on such dates as the Chief Commissioner may by notification in the Official Gazette appoint. Rule 65(2) of the Rules, inter alia, contemplates that the occupier of every factory notified by the Chief Commissioner, where more than 250 workers are ordinarily employed, shall provide in or near the factory an adequate canteen in accordance with the standard prescribed in those Rules. In pursuance of the provisions of sub-rule (1) of Rule 65 of the Rules, the Lieutenant-Governor of the Union Territory of Delhi, by notification in the Official Gazette, dated 21st of January, 1991, directed that Rules 65 to 70 of the Rules shall apply to the factories specified in the said Rules with effect from the date of publication of the notification in the Official Gazette. It included M/s. Air India Ground Services Department, Indira Gandhi International Airport, Delhi (Engineering Unit). The workmen working in Air India Ground Services Department Canteen, hereinafter referred to as ‘the Canteen’, raised an industrial dispute and the competent Government made a reference to the Central Government Industrial Tribunal as to whether the demand of the workmen employed by Chef Air to provide canteen service to be treated as deemed employees of the management of Air India is justified and, if so, what relief the workmen are entitled to? The workmen laid their claim and, according to them, they were employed by Air India on casual basis in the Canteen and their employment was through Chef Air, which is a unit of the Corporation. According to the workmen, the Corporation has entered into a contract with Air India to run and maintain the canteen and for that purpose, they were initially appointed for a period of 40 days and said period used to be extended from time to time and in this way each of them had completed service for 240 days in a year. According to the workmen, they were called for interview on several occasions but had not been selected and on the contrary, persons junior to them have been regularized. The workmen have further alleged that Air India had entered into a contract with the Co