Section 33A(1) in The Maharashtra Industrial Relations Act, 1946
(1)In any dispute between the employees and employees referred to arbitration of a Labour Court or the Industrial Court under section 72, all persons, who are parties to the dispute, shall be entitled to appear and act in the proceedings before such Court:Provided that, where the number of employees on either side exceeds five, then such employees shall elect, in the manner prescribed, two persons from amongst themselves to appear and act for them.