“4. Before considering the authorities cited by counsel before us, we proceed first to examine the meaning of the words used by Parliament in the definition clause of 'appropriate Government'. It is an undisputed fact that the company was incorporated under the Companies Act and it is the company so incorporated which carried on the undertaking. The undertaking, therefore, is not one carried on directly by the Central Government or by any one of its departments as in the case of posts and telegraphs or the railways. It was, therefore, rightly conceded both in the High Court as also before us that it is not an industry carried on by the Central Government. That being the position, the question then is, is the undertaking carried on under the authority of the Central Government? There being nothing in S.2(a) to the contrary, the word 'authority' must be construed according to its ordinary meaning and therefore must mean a legal power given by one person to another to do an act. A person is said to be authorised or to have an authority when he is in such a position that he can act in a certain manner without incurring liability, to which he would be exposed but for the authority, or, so as to produce the same effect as if the person granting the authority had for himself done the act. For instance, if A authoritises B to sell certain goods for and on his behalf and B does so, B incurs no liability for so doing in respect of such goods and confers a good title on the purchaser. There clearly arises in such a case the relationship of a principle and an agent. The words "under the authority of" mean pursuant to the authority, such as where an agent or a servant acts under or pursuant to the authority of his principal or master. Can the respondent company, therefore, be said to be carrying on its business pursuant to the authority of the Central Government? That obviously cannot be said of a company incorporated under the Companies Act whose constitution, powers and functions are provided for and regulated by its memorandum of association and the articles of association. An incorporated company, as is well known, has a