Section 166 in The Central Goods and Services Tax Act
Title: Laying of rules regulations and notifications
Every rule made by the Government, every regulation made by the Board and every notification issued by the Government under this Act, shall be laid, as soon as may be after it is made or issued, before each House of Parliament, while it is in session, for a total period of thirty days which may be comprised in one session or in two or more successive sessions, and if, before the expiry of the session immediately following the session or the successive sessions aforesaid, both Houses agree in making any modification in the rule or regulation or in the notification, as the case may be, or both Houses agree that the rule or regulation or the notification should not be made, the rule or regulation or notification, as the case may be, shall 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 anything previously done under that rule or regulation or notification, as the case may be.
Title: Delegation of powers
The Commissioner may, by notification, direct that subject to such conditions, if any, as may be specified in the notification, any power exercisable by any authority or officer under this Act may be exercisable also by another authority or officer as may be specified in such notification.
Title: Power to issue instructions or directions
(1) The Board may, if it considers it necessary or expedient so to do for the purpose of uniformity in the implementation of this Act, issue such orders, instructions or directions to the central tax officers as it may deem fit, and thereupon all such officers and all other persons employed in the implementation of this Act shall observe and follow such orders, instructions or directions.
(2) The Commissioner specified in clause (91) of section 2, sub-section (3) of section 5, clause (b) of sub-section (9) of section 25, sub-sections (3) and (4) of section 35, sub-section (1) of section 37, sub-section (2) of section 38, sub-section (6) of section 39, sub-section (5) of section 66, sub-section (1) of section 143, sub-section (1) of section 151, clause (l) of sub-section (3) of section 158 and section 167 shall mean a Commissioner or Joint Secretary posted in the Board and such Commissioner or Joint Secretary shall exercise the powers specified in the said sections with the approval of the Board.
Title: Service of notice in certain circumstances
(1) Any decision, order, summons, notice or other communication under this Act or the rules made thereunder shall be served by any one of the following methods, namely:—
by giving or tendering it directly or by a messenger including a courier to the addressee or the taxable person or to his manager or authorised representative or an advocate or a tax practitioner holding authority to appear in the proceedings on behalf of the taxable person or to a person regularly employed by him in connection with the business, or to any adult member of family residing with the taxable person; or
by registered post or speed post or courier with acknowledgement due, to the person for whom it is intended or his authorised representative, if any, at his last known place of business or residence; or
by sending a communication to his e-mail address provided at the time of registration or as amended from time to time; or
by making it available on the common portal; or
by publication in a newspaper circulating in the locality in which the taxable person or the person to whom it is issued is last known to have resided, carried on business or personally worked for gain; or
if none of the modes aforesaid is practicable, by affixing it in some conspicuous place at his last known place of business or residence and if such mode is not practicable for any reason, then by affixing a copy thereof on the notice board of the office of the concerned officer or authority who or which passed such decision or order or issued such summons or notice.
(2) Every decision, order, summons, notice or any communication shall be deemed to have been served on the date on which it is tendered or published or a copy thereof is affixed in the manner provided in sub-section (1).
(3) When such decision, order, summons, notice or any communication is sent by registered post or speed post, it shall be deemed to have been received by the addressee at the expiry of the period normally taken by such post in transit unless the contrary is proved.
Title: Rounding off of tax etc
The amount of tax, interest, penalty, fine or any other sum payable, and the amount of refund or any other sum due, under the provisions of this Act shall be rounded off to the nearest rupee and, for this purpose, where such amount contains a part of a rupee consisting of paise, then, if such part is fifty paise or more, it shall be increased to one rupee and if such part is less than fifty paise it shall be ignored.