law: Companies Act, 2013 
  431.
  
    Vacancy
  
  in Tribunal or Appellate Tribunal not to invalidate acts or proceedings.
  No
  
  act or proceeding of the Tribunal or the Appellate Tribunal shall be questioned
  
  or shall be invalid merely on the ground of the existence of any vacancy or
  
  defect in the constitution of the Tribunal or the Appellate Tribunal, as the
  
  case may be.