8. Exemption of tax.

(1) The goods specified in the Schedule–I shall be exempt from tax, subject to such conditions as may be specified therein.

(2) Subject to such conditions as it may impose, the State Government may, if it considers necessary so to do in the public interest, by notification in the Official Gazette, add to or omit from, or otherwise amend or modify the Schedule–I, prospectively or retrospectively, and thereupon the Schedule shall be deemed to have been amended accordingly.

(3) The State Government in the public interest, by notification in the Official Gazette, may exempt whether prospectively or retrospectively from tax the sale or purchase by any person or class of persons as mentioned in Schedule–II, without any condition or with such condition as may be specified in the notification.

" (3A) Subject to such conditions as it may impose, the State Government may, if it considers necessary so to do in the public interest, by notification in the Official Gazette, add to or omit from, or otherwise amend or modify the Schedule–II, prospectively or retrospectively, and thereupon the Schedule shall be deemed to have been amended accordingly."

(4) The State Government may, if it considers necessary in the public interest so to do, notify grant of exemption from payment of whole of tax payable under this Act in respect of any class of sales or purchases for the purpose of promoting the scheme of Special Economic Zones or promoting exports, subject to such conditions as may be laid down in the notification.

(5) Every notification issued " under this section" shall be laid, as soon as may be after it is so issued, before the House of the State Legislature, while it is in session for a period of not less than thirty days, which may comprised in one session or in two successive sessions" and if before the expiry of the sessions" in which it is so laid or of the session immediately following the House of the State Legislature makes any modification in such notification or resolves that any such notification should not be issued, such notification thereafter have effect only in such modified form or be of no effect, as the case may be, so however, that any such modification or annulment shall be without prejudice to the validity of any thing previously done there under.