law: Building and Other Construction Workers (Regulation of Employment and Conditions of Service) Act, 1996 
  
  39.Notice of certain accidents.-
  (1) Where in any establishment an accident
  
  occurs which causes death or which causes any bodily injury by reason of which
  
  the person injured is prevented from working for a period of forty-eight hours
  
  of more immediately following the accident, or which is of such a nature as may
  
  be prescribed , the employer shall give notice thereof to such authority, in
  
  such form and within such time as may be prescribed.
  (2) On receipt of a notice under sub-section (1) the authority referred to in
  
  that sub-section may make such investigation or inquiry as it considers
  
  necessary.
  (3) Where a notice given under sub-section (1) relates to an accident causing
  
  death of five or more persons, the authority shall make an inquiry into such
  
  accident within one month of the receipt of the notice.