[29A. Provision for filing of certain appeals.--Where any decree or order has been made or passed by any court (other than a High Court) in any suit or proceeding before the establishment of a Tribunal, being a suit or proceeding the cause of action whereon it is based is such that it would have been if it had arisen after such establishment, within the jurisdiction of such Tribunal, and no appeal has been preferred against such decree or order before such establishment and the time for preferring such appeal under any law for the time being in force had not expired before such establishment, such appeal shall lie--
(a) to the Central Administrative Tribunal, within ninety days from the date on which the Administrative Tribunals (Amendment) Bill, 1986 receives the assent of the President, or within ninety days from the date of receipt of the copy of such decree or order, whichever is later, or
(b) to any other Tribunal, within ninety days from its establishment or within ninety days from the date of receipt of the copy of such decree or order, whichever is later.]