D. Ranganayakulu vs Superintendent Engineer Nsrc O&M & Anr

The Supreme Court held that participation in arbitration proceedings without objection constitutes a waiver of the right to challenge the arbitrator's jurisdiction. The Court emphasized that the respondents, having participated in the arbitration process and not contesting the appointment of the arbitrator, cannot later raise jurisdictional objections. The appeals were allowed, affirming the lower court's decision to make the arbitrator's award a rule of the court under the Arbitration Act, 1940.