subject arbitral proceedings commenced on 21st August 2008 when the Respondent received the notice invoking arbitration and thus, as per Section 87 of the Arbitration and Conciliation (Amendment) Act, 2021, the amended provisions will not apply to arbitral proceedings commenced before the commencement of the Amendment Act, 2015. He thus contends that the present Chief Engineer of MIDC is eligible and qualified to continue as Arbitrator. He further points out that the Petitioner has already filed his statement of claim afresh before Shri. Patil, the earlier Chief Engineer of MIDC pursuant to the setting aside of the arbitral Award by the District Judge, Pune by his order dated 7th September 2017. Thus, Mr. Karlekar states that having participated in the arbitral proceedings before the Chief Engineer of MIDC, even after the Amendment Act, without raising a single objection to the continuance of proceedings before Shri. Patil, the Petitioner is now estopped from raising the objection at this late stage. He also places reliance on the decisions of the Supreme Court in the matter of S.P. Singla Constructions Private Limited v. State of Himachal Pradesh and Another4 and Rajasthan Small Industries Corporation Limited v. Ganesh Containers Movers Syndicate5 . In both these decisions, the Apex Court has held that the provisions of the Amendment Act, 2015 shall not apply to arbitral proceedings commenced