Under the Bengal Finance (Sales Tax) Act, 1941, the definitions of 'goods' and 'dealer' are very comprehensive and general, and 1hey cover 'clgarettes' and a dealer in cigarettes. Under s. 5(2)(a)(ii), a dealer would be entitled to pur· chase free of tax goods required by him for use in the manufacture of cigarettes. Section 23 of the West Bengal Sales Tax Act, 1954, excepts everything relating to cigarettes from the operations of the 1941-Act, save to the extent indicated in the proviso to that section, which retains the benefit under s. 5(2)(a)(ii) of the 1941-Act. As a conscquen::e of the Additional Duties of Excise (Goods of Special Importance) Act, 1957 (Central Act ·58 of 1957), the West Bengal State legislature passed the West Bengal Sales Tax (Amendment) Act, 1958. This Act amended the 1954 Act, hy substitutini the words 'certain notified commodities' for the words 'cigarettes and other commodities.' .Tue 1958-Act also substituted new ss. 23 and 25 in the 1954-Act. Under the new s, 25, the 1954-Act can be made applieabk: by a notification only to a. commodity 'which is liable to taxation under the Bengal Finance (Sales Tax) Act, 1941' and fur· ther, the 1941-Act 'shall cease to apply to such commodity' and the 1954· Act shall apply to such commodity, only from the date of such notification,.