(iii) of this proviso the price or the maximum price, as the case may be, so fixed shall, in relation to the goods so sold, be deemed to be the normal price thereof; (iii)where the assessee so arranges that the goods are generally not sold by him in the course of wholesale trade except to or through a related person, the normal price of the goods sold by the assessee to or through such related person shall be deemed to be the price at which they are ordinarily sold by the related person in the course of wholesale trade at the time of removal, to dealers (not being related persons) or where such goods are not sold to such dealers, to dealers (being related persons) who sell such goods in retail; (b) where the normal price of such goods is not ascertainable for the reason that such goods are not sold or for any other reason, the nearest ascertainable equivalent thereof determined in such manner as may be prescribed.