Section 123(2)(na) in The Maharashtra Industrial Relations Act, 1946
(na)the procedure to be followed by the Registrar for ascertaining membership of unions for the purposes of Chapter III , IV and V,(nb) the manner of submitting objections to such membership and the amount of deposit which the Registrar may require to be made before entering upon the inquiry;(nc)the fine which may be imposed by the Registrar for any frivolous or vexatious objections to membership;