The Notification on the basis of which exemption was claimed by the appellant inter alia provides: "the Central Government hereby exempts all excisable goods (hereinafter referred as "the said goods"), on which the duty of excise is leviable and in the manufacture of which any goods fall ing under Item No. 68 of the First Schedule to the (1 of 1944) have been used, as raw materials or component parts (hereinafter referred as "the inputs"), from so much of the duty of excise leviable thereon as is equivalent to the duty of excise already paid on the inputs." As is apparent even from the order of the Tribunal the details of the use of paper cores in the manufacture of paper as set out by the appellant on the basis whereof the exemption was claimed by it read as hereunder: "Paper cores: Paper cores are used in paper mill on re winding and cutting machines.