Section 42C(2) in Himachal Pradesh General Sales Tax Act, 1968
(2)When the registered dealer purchases any goods, which have suffered tax either under sub-section (2) of section 6 at full rates or under section 42 or section 42-B at the concessional rates, for use of such goods as raw-material in the manufacture in Himachal Pradesh of any goods for sale, he shall be entitled to a set off of tax equal to the difference between the aggregate liability on the sale of final product minus to the amount of tax already paid by the selling dealer.]