"This relieves the Court of undertaking a discussion, which, even otherwise, may be unnecessary, having regard to the nature of the function. The first appellant (CIL) is not a Department of the Government. It is a Government Company. In fact, what is excluded from the definition of the expression ‘enterprise’ is a government department carrying on government functions. "Carrying on business in mining, cannot, by any stretch of imagination, be described as a sovereign function. There is nothing in the definition which excludes a State monopoly which is even set up to achieve the goals in Article 39(b) of the Constitution", the bench said.