In Dharma Pratisthanam v. Madhok Construction (Pvt.) Ltd., (2005) 9 SCC 686, a three Judge Bench of the Hon’ble Supreme Court had the occasion to consider the effect of acquiescence on appointment of arbitrator. In that regard, the Hon’ble Supreme Court examined the difference between the unilateral appointment and unilateral reference. While both were termed to be illegal, at the same time, it was observed that it would make a difference if in respect of unilateral appointment and reference, other party submits to the jurisdiction of the arbitrator and waives its rights which it had under the agreement. In that situation, the arbitrator was held entitled to proceed with reference and the party submitting to his jurisdiction and participating in the proceedings precluded and estopped from raising any objection in that regard, at a later stage. If, however, that party had failed to act when called upon, it could not lead to an inference of implied consent or acquiescence being drawn. Thus, the appellant in that case was found to have not responded to the proposal by the other side to join in the appointment of the sole arbitrator. Such an act was not construed as its consent. Meerut Development Authority v. Civil Engineering Construction Corporation, 2020 (3) AWC 2532.