In Nathani Steels Ltd. v. Associated Constructions, 1995 Supp (3) SCC 324, it was held as under:
“Even otherwise we feel that once the parties have arrived at a settlement in respect of any dispute or difference arising under a contract and that dispute or the difference is amicable settled by way of a final settlement by and between the parties, unless that settlement is set aside in proper proceedings, it cannot lie in the mouth of one of the parties to the settlement to spurn it on the ground that it was a mistake and proceed to invoke the arbitration clause. If this is permitted the sanctity of contract, the settlement also being a contract, would be wholly lost and it would be open to one party to take the benefit under the settlement and then to question the same on the ground of mistake without having the settlement set aside.” WAPCOS Ltd. v. Salma Dam Joint Venture, (2020) 3 SCC 169.
The legal consequence is well taken care of by the provisions of Section 15(1) of the Arbitration and Conciliation Act, 1996 read with Section 2 of the Act which provides, where the Arbitrator withdraws from office for any reason, a substitute arbitrator should be appointed according to the Rules that were applicable to the appointment of the arbitrator being replaced. Therefore in the first place a substitute arbitrator may be appointed in view of the clear provisions of law in that regard. Second as to the procedure to be followed, again there is no doubt that it would have to remain the same as had been followed at the time of appointment of the arbitrator who has rescued himself. M/s Manish Engineering Enterprises v. Indian Farmers Fertilizers Cooperative Ltd., 2020 (138) ALR 930.
The words “right to sue” mean the right to seek relief by means of legal proceedings. The right to sue accrues only when the cause of action arises. The suit must be instituted when the right asserted in the suit is infringed, or when there is a clear and unequivocal threat to infringe such right by the defendant against whom the suit is instituted. Dahiben v. Arvindbhai Kalyanji Bhanusali (Gajra) Dead through Legal Representatives and others, (2020) 7 SCC 366.