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SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Name of Issuer)

(Title of Class of Securities)

(CUSIP Number)

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

X0202 SCHEDULE 13D/A 0001011438-26-000364 0001881188 XXXXXXXX LIVE 8 Class A ordinary shares, par value $0.0001 per share 05/29/2026 false 0001848763 G7500M104 ReNew Energy Global plc C/O Vistra (UK) Ltd Suite 3, 7th Floor 50 Broadway London X0 SW1H 0DB Sumant Sinha (91) 124 489 6670 Commercial Block-1, Zone 6, Golf Course DLF City Phase-V Gurugram K7 122009 0001881188 Sinha Sumant a AF K7 47558982 11437641 47558982 11437641 58996705 N 19.35 IN Y Cognisa Investment a AF K7 0 6498328 0 6498328 6498328 N 2.64 PN Y Wisemore Advisory Private Limited a AF K7 0 4939313 0 4939313 4939313 N 2 CO Class A ordinary shares, par value $0.0001 per share ReNew Energy Global plc C/O Vistra (UK) Ltd Suite 3, 7th Floor 50 Broadway London X0 SW1H 0DB This Amendment No. 8 (the "Amendment No.8") is being filed by the undersigned, pursuant to 240.13d-2(a), to amend and supplement the Schedule 13D filed with the U.S. Securities and Exchange Commission (the "SEC") by the Reporting Persons on September 2, 2021, as amended and supplemented on November 21, 2022, November 30, 2023, December 10, 2024, July 2, 2025, October 10, 2025, December 15, 2025 and May 28, 2025 (the "Original Schedule 13D") and as further amended and supplemented by this Amendment No. 8 to the Original Schedule 13D (collectively, the "Schedule 13D"). Except as specifically provided herein, this Amendment No. 8 does not modify any of the information previously reported on the Original Schedule 13D. Capitalized terms not otherwise defined in this Amendment No. 8 shall have the same meanings ascribed thereto in the Original Schedule 13D. This Amendment amends and supplements Item 7 of the Original Schedule 13D by adding the following: Exhibit 99.16 Revised Proposal, dated May 28, 2026, from Canada Pension Plan Investment Board and Sumant Sinha. Sinha Sumant /s/ Sumant Sinha Sumant Sinha, in person capacity 05/29/2026 Cognisa Investment /s/ Sumant Sinha Sumant Sinha, Partner 05/29/2026 Wisemore Advisory Private Limited /s/ Sumant Sinha Sumant Sinha, Director 05/29/2026