Disclosure under Regulation 30 of SEBI ( Listing Obligation and Disclosure Requirements ) Regulation, 2015

November 7, 2026 BSE Limited National Stock Exchange of India Limited Corporate Relationship Department Exchange Plaza, C-1, Block G, Phiroze Jeejeebhoy Towers Bandra-Kurla Complex, Dalal Street Bandra (East) Mumbai – 400 001. Mumbai – 400 051. Scrip Code: 500400 Symbol: TATAPOWER Dear Sir/Madam, Disclosure under Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 In continuation of our (a) announcement dated July 2, 2025 concerning the arbitration between the Company and Kleros Capital Partners Limited (‘Kleros’), (b) announcement in the Notes to the Company’s consolidated financial results for Q2FY26 dated November 11, 2025, and (c) announcement dated August 26, 2026 about Singapore International Commercial Court’s decision in relation to the Company’s challenge to the arbitral awards dated July 1, 2025 and August 27, 2025, we wish to inform you of further developments on this litigation/dispute. This disclosure is in compliance with Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015, as amended, read with SEBI Master Circular HO/49/14/14(7)2025-CFD-POD2/I/3762/2026 dated January 30, 2026. The details are provided below: Sr. No. Particulars Details a) The details of any change in the status and The Company has filed notice of appeal before / or any development in relation to such the Singapore Court of Appeal on September 7, proceedings 2026 against the judgment dated August 26, 2026 of the Singapore International Commercial Court. This is within the prescribed period of limitation of 28 days from August 26, 2026. The Singapore Court of Appeal has directed the Company to file its detailed submissions by November 23, 2026. The appeal is scheduled for hearing before the Court of Appeal on January 19, 2027. Kleros had preferred application dated July 24, 2025 before the Singapore International Commercial Court for enforcement of arbitral award dated July 1, 2025. The Judgment to enforce the arbitral award was given on September 17, 2026. In an application being SUM 110 filed by Kleros before the Singapore International Commercial Court, which is an ex parte proceeding, Order dated October 26, 2026, was passed directing officers of the Company to provide details of the Company’s assets within 14 days. On November 6, 2026, the Company’s two wholly owned subsidiaries registered in Singapore namely: (i) Tata Power International Pte. Limited; and (ii) Bhira Investments Pte. Limited have been served notices intimating about attachment of Company’s shares in the aforesaid entities by the Court appointed Sheriff. The Sheriff has also served copy of Order dated October 26, 2026 passed by Singapore International Commercial Court in SUM110. The Company’s aforesaid shares are pledged to a consortium of lenders of the respective subsidiaries. The Company is seeking legal advice and will take action, as deemed necessary, as per law. b) In the case of litigation against key Not Applicable. management personnel or its promoter or ultimate person in control, regularly provide details of any change in the status and / or any development in relation to such proceedings c) In the event of settlement of the Not Applicable. proceedings, details of such settlement including - terms of the settlement, compensation/penalty paid (if any) and impact of such settlement on the financial position of the listed entity. This is for your information and records. Yours Sincerely, For The Tata Power Company Limited Vispi S. Patel Company Secretary FCS 7021