Section 426(5) in Gauhati Municipal Corporation Act, 1971
(5)Every rule made under this section shall be laid as soon as may be after it is made, before the State Legislature while it is in session for a total period of fourteen days which may be combined in one session or in two successive sessions, and if, before the expiry of the session in which it is so laid or the session immediately following, the Legislature agrees in making any modification in the rule or that the rule should not be made, the rule 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.