Section 39(1)(b) in The Indian Institutes of Management Act, 2017
(b)every Academic Council or Faculty Council, as the case may be, constituted in relation to every Institute before the commencement of this Act shall be deemed to be the Academic Council constituted under this Act until an Academic Council is constituted under this Act for that Institute, but on the constitution of the new Academic Council under this Act, the members of the Academic Council or Faculty Council, as the case may be, holding office before such constitution shall cease to hold office;