law: Building and Other Construction Workers (Regulation of Employment and Conditions of Service) Act, 1996 
  54.Cognizance of offences.- 
  (1) No court shall take cognizance of any
  
  offence punishable under this Act except on a complaint----
  (a) made by, or with the previous sanction in writing of, the Director-General
  
  or the Chief Inspector; or
  (b) made by an office-bearer of a voluntary organization registered under the
  
  Societies Registration Act, 1860; or
  (c) made by an office-bearer of any concerned trade union registered under the
  
  Trade Unions Act, 1926.
  (2) No court inferior to that of a
  
  Metropolitan Magistrate or a Judicial Magistrate of the first class shall try
  
  any offence punishable under this Act.