"If we examine the thrust of all the decisions, there is no bar on the authorities to lift the veil of a company, whether a manufacturer or a buyer, to see it was not wearing that mask of not being treated as related person when, in fact, C both, the manufacturer and the buyer, are in fact the same persons. Under sub-section (1) of Section 4 of the Act, value of the excisable goods shall not be deemed to be normal price thereof, i.e., the price at which such goods are ordinarily sold by the assessee to a buyer in the course of wholesale trade for delivery at the time and place of· D removal, if the buyer is a related person and price is not the sole consideration for sale. As to who is a related person, we have to see its definition in Section 4(4)(c) of the Act. It is not only that both the manufacturer and the buyer are associated with each other for which corporate E veil may be lifted to see who is behind it but also that they should have interest, directly or indirectly, in the business of each other. But once it is found that persons behind the manufacturer and the buyer are same, it is apparent that the buyer is associated with the manufacturer, i.e., the F assessee and then regard being had to the common course of natural events, human conduct and public and private business it can be presumed that they have interest, directly or indirectly, in the business of each other (refer Section 114 of the Evidence Act). It is, however, G difficult to lay down any broad principle to hold as to when the corporate veil should be lifted or if on doing that, it could be said that the assessee and the buyer are related persons. That will depend upon the facts and circumstances of each case and it will have to be seen who H