law: The Administrative Tribunals Act, 1985
  21. Limitation. -
  (1) A Tribunal shall not admit an application,
  
  -
  (a) in a case where a
  
  final order such as is mentioned in clause (a) of sub-section (2) of section 20
  
  has been made in connection with the grievance unless the application is made,
  
  within one year from the date on which such final order has been made; 
  (b) in a case where an
  
  appeal or representation such as is mentioned in clause (b) of sub-section (2) of
  
  section 20 has been made and a period of six months had expired thereafter
  
  without such final order having been made, within one year from the date of
  
  expiry of the said period of six months. 
  (2) Notwithstanding anything contained in
  
  sub-section (1), where - 
  (a) the grievance in
  
  respect of which an application is made had arisen by reason of any order made
  
  at any time during the period of three years immediately preceding the date on
  
  which the jurisdiction, powers and authority of the Tribunal becomes
  
  exercisable under this Act in respect of the matter to which such order
  
  relates; and 
  (b) no proceedings for
  
  the redressal of such grievance had been commenced before the said date before
  
  any High Court, the application shall be entertained by the Tribunal if it is
  
  made within the period referred to in clause (a), or, as the case may be,
  
  clause (b), of sub-section (1) or within a period of six months from the said
  
  date, whichever period expires later. 
    (3) Notwithstanding anything contained in
  
  sub-section (1) or sub-section (2), an application may be admitted after the
  
  period of one year specified in clause (a) or clause (b) of sub-section (1) or,
  
  as the case may be, the period of six months specified in sub-section (2), if
  
  the applicant satisfies the Tribunal that he had sufficient cause for not
  
  making the application within such period.