Notwithstanding anything contained in Part I or in the Code of Civil Procedure, 1908 (5 of 1908), a judicial authority, on being seized of a dispute regarding a contract made between persons to whom section 53 applies and including an arbitration agreement, whether referring to present or future differences, which is valid under that section and capable of being carried into effect, shall refer the parties on the application of either of them or any person claiming through or under him to the decision of the arbitrators and such reference shall not