law: 4. Rate of tax.
  (1) The tax payable by a dealer under this Act shall be levied
  (a) in the case of taxable turnover in respect of the goods specified in the First Schedule, at the rate of twelve paise in the rupee;
  (b) in the case of taxable turnover in respect of the goods specified in the Second Schedule, at such rate not exceeding four paise in rupee as the Central Government may, from time to time, by notification in the Official Gazette, determine;
  (c) in the case of taxable turnover in respect of any food or drink served for consumption in a hotel or restaurant or part thereof, with which a cabaret, floor show or similar entertainment is provided therein, at the rate of forty paise in the rupee;
  (d) in the case of taxable turnover in respect of any other goods, at the rate of seven paise in the rupee:
  Provided that the Administrator may with the previous approval of the Central Government and by notification in the Official Gazette, add to, or omit from, or otherwise amend, the First Schedule or the Second Schedule, either retrospectively or prospectively, and thereupon the First Schedule or, as the case may be, the Second Schedule, shall be deemed to be amended accordingly:
  Provided further that no such amendment shall be made retrospectively if it would have the effect of prejudicially affecting the interests of any dealer:
  Provided also that in respect of any goods or class of goods the Administrator is of the opinion that it is expedient in the interest of the general public so to do, he may, with the previous approval of the Central Government and by notification in the Official Gazette, direct that the tax in respect of taxable turnover of such goods or class of goods shall, subject to such conditions as may be specified, be levied at such modified rate not exceeding the rate applicable under this section, as may be specified in the notification.
  (2) For the purposes of this Act, "taxable turnover" means that part of a dealer's turnover during the prescribed period in any year which remains after deducting therefrom,
  (a) his turnover during that period on
  (i) sale of goods, the point of sale at which such goods shall be taxable is specified by the Administrator under section 5 and in respect of which due tax is shown to the satisfaction of the Commissioner to have been paid;
  (ii) sale of goods declared tax-free under section 7;
  (iii) sale of goods not liable to tax under section 8;
  (iv) sale of goods which are proved to the satisfaction of the Commissioner to have been purchased within a period of twelve months prior to the date of registration of the dealer and subjected to tax under the Bengal Finance (Sales Tax) Act, 1941 (Bengal Act VI of 1941), as it was then in force, or under this Act;
  (v) sale to a registered dealer
  (A) of goods of the class or classes specified in the certificate of registration of such dealer, as being intended for use by him as raw materials in the manufacture in Delhi of any goods, other than goods specified in the Third Schedule, or newspapers,
  (1) for sale by him inside Delhi; or
  (2) for sale by him in the course of inter-State trade or commerce, being a sale occasioning, or effected by transfer of documents of title to such goods during the movement of such goods from Delhi; or
  (3) for sale by him in the course of export outside India being a sale occasioning the movement of such goods from Delhi, or a sale effected by transfer of documents of title to such goods effected during the movement of such goods from Delhi, to a place outside India and after the goods have crossed the customs frontiers of India; or
  (B) of goods of the class or classes specified in the certificate of registration of such dealer as being intended for resale by him in Delhi, or for sale by him in the course ofinter-State trade or commerce or in the course of export outside India in the manner specified in sub-item (2) or sub-item (3) of item (A), as the case may be; and
  (C) of containers or other materials, used for the packing of goods, of the class or classes specified in the certificate of registration of such dealer, other than goods specified in the Third Schedule, intended for sale or resale;
  (vi) such other sales as are exempt from payment of tax under section 66 or as may be prescribed:
  Provided that no deduction in respect of any sale referred to in sub-clause (iv) shall be allowed unless the goods, in respect of which deduction is claimed, are proved to have been sold by the dealer within a period of twelve months from the date of his registration and the claim for such deduction is included in the return required to be furnished by the dealer in respect of the said sale:
  Provided further that no deduction in respect of any sale referred to in sub-clause (v) shall be allowed unless a true declaration duly filled and signed by the registered dealer to whom the goods are sold and containing the prescribed particulars in the prescribed form obtainable from the prescribed authority is furnished in the prescribed manner and within the prescribed time, by the dealer who sells the goods:
  Provided also that where any goods are purchased by a registered dealer for any of the purposes mentioned in sub-clause (v), but are not so utilised by him, the price of the goods so purchased shall be allowed to be deducted from the turnover of the selling dealer but shall be included in the taxable turnover of the purchasing dealer; and
  (b) the tax collected by the dealer under this Act as such and shown separately in cash memoranda or bills, as the case may be.