Union Of India & Ors vs Hari Singh

The Supreme Court held that the Supplementary Agreement executed on 27.04.2004 between the Northern Railway and the contractor effectively discharged all claims under the Principal Agreement, including the arbitration clause. The Court emphasized that the acceptance of final payment by the contractor constituted a waiver of any further claims, thus rendering the arbitration clause inoperative. The appeal against the High Court's decision was dismissed, affirming the finality of the settlement reached between the parties under the Supplementary Agreement.