Announcement under Regulation 30 - Pendency of litigation/dispute.

August 1, 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 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 (‘SEBI Circular’) are mentioned below: Sr. No. Particulars Details a) Brief Details of Litigation Name(s) of the opposing party Maharashtra Electricity Regulatory Commission (MERC) Court/ Tribunal / Agency where Appellate Tribunal for Electricity (APTEL) litigation is filed Brief details of dispute / litigation The APTEL delivered its judgment in the appeal filed by The Tata Power Company Limited (TPCL) challenging the MERC Multi-Year Tariff (MYT) Order dated August 8, 2016. APTEL held that MERC had incorrectly Disallowed Property Tax as an Uncontrollable O&M expense and Disallowed Income Tax for the period FY 2007-08 to FY 2013-14. Accordingly, APTEL has remanded these matters to MERC and directed MERC to pass order on the issues expeditiously. b) Expected financial implications, if Nil any, due to compensation, penalty, etc. c) Quantum of claims, if any Approx. 268 crore, however, the final amount, will crystallize upon completion of the remand proceedings and issuance of MERC's order. This is for your information and records. Yours Sincerely, For The Tata Power Company Limited Vispi S. Patel Company Secretary FCS 7021