Section 122(e) in The Maharashtra Industrial Relations Act, 1946
(e)a Registered Union or a Representative Union or a Qualified Union or other representatives elected, entitled to appear or act as the representatives of employees under the Act so repealed shall, notwithstanding the repeal of the said Act, continue to act as the representatives of employees in any proceedings under this Act for a period of three months from the date on which this Act comes into force.