law: Building and Other Construction Workers (Regulation of Employment and Conditions of Service) Act, 1996 
  
  13.Identity cards.-
  (1) The Board shall give to every beneficiary
  
  an identity card with his photograph duly affixed thereon and with enough space
  
  for entering the details of the building or other construction work done by
  
  him.
  (2) Every employer shall enter in the identity card the details of the building
  
  or other construction work done by the beneficiary and authenticate the same
  
  and return it to be beneficiary.
  (3) A beneficiary who has been issued an identity card under this Act shall
  
  produce the same whenever demanded by any officer of Government or the Board,
  
  any inspector or any other authority for inspection.