the determination of the questions under the new agreement for a claim to set aside a contract on the grounds such as fraud, duress or coercion. Once the contract is substituted by a new contract, the old contract does not subsist. In a contract which is substituted or abrogated, the parties have no right to invoke the clause which has perished with the contract. In such a case, there is no question of appointing arbitrator as the very jurisdiction of the Arbitrator is dependent upon the existence of the arbitration clause. Facts of the present case clearly reveal that parties to the contract, which was executed in 1987, have subsequently agreed to bring it to an end to all intents and purposes and to treat it as if it had never existed by substituting a fresh MoU. Fresh contract does not provide for arbitration and it has been specifically stated in the MoU that both the parties have discharged their respective obligations in respect of the contract. In full and final settlement the Applicant had received the amount stated in the MoU for the work done. Hence for that purpose there existed no arbitrable dispute for reference.