Press Release

September 3, 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, Sub.: Press Release Please find enclosed the press release titled “Tata Power Strengthens NCR’s Power Infrastructure with Commissioning of 400kV Jalpura-Khurja Transmission Corridor, comprising 162 CKM Transmission lines and 1,000 MVA Substation”. This is for your reference and records and is not a disclosure in terms of the requirements of Regulation 30 of SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015. Yours Sincerely, For The Tata Power Company Limited Vispi S. Patel Company Secretary FCS 7021 Encl: As above Tata Power Strengthens NCR’s Power Infrastructure with Commissioning of 400kV Jalpura-Khurja Transmission Corridor, comprising 162 CKM Transmission lines and 1,000 MVA Substation National, September 3, 2026: The Tata Power Company Limited (Tata Power), one of India’s largest integrated power companies has successfully commissioned the second element of its Jalpura-Khurja Transmission Project in Uttar Pradesh, further strengthening the state’s power transmission infrastructure and enhancing connectivity to the growing electricity demand centres across NCR and Western Uttar Pradesh. Executed through TP Jalpura Khurja Power Transmission Limited, a wholly owned subsidiary of Tata Power, the second element comprises a 400 kV double-circuit transmission line from Khurja to Jalpura spanning 162 circuit kilometres (CKM) and a 400/220 kV GIS substation at Jalpura with 1,000 MVA transformation capacity. The 162 CKM transmission corridor comprises two circuits of approximately 81 km each and establishes a critical high-voltage link between Khurja and Jalpura. Khurja is an important power node in Western Uttar Pradesh, playing a strategic role in enabling efficient transmission of power towards NCR and Noida. The newly commissioned 400/220 kV GIS substation at Jalpura, with 1,000 MVA transformation capacity, will serve as a major power gateway, enabling the transfer of power from the 400 kV high-voltage grid to the 220 kV network. This will support the region’s increasing power requirements while enhancing the reliability, resilience and efficiency of the transmission network. With the commissioning of this transmission corridor and substation, Tata Power further strengthens the infrastructure required to support the next phase of growth in NCR and Western Uttar Pradesh, while contributing to the broader objective of building a robust and future-ready electricity grid for India. The project reinforces Tata Power’s capabilities in developing large-scale, critical power infrastructure and its commitment to supporting India’s transition towards a reliable, resilient and future-ready power transmission network. Tata Power’s transmission portfolio now stands at 7900 circuit kilometres of lines operational and under execution across India, further reinforcing the company’s role in strengthening the nation’s electricity transmission network. About Tata Power: The Tata Power Company Limited, a vertically integrated power company and part of the Tata Group, India’s largest multinational business conglomerate, has built a diversified portfolio across the entire power value chain, with its total operational and under-construction capacity surpassing 26 GW. This includes approximately 17.7 GW of clean and green energy capacity (including projects under construction) and around 8.8 GW of thermal generation capacity, ensuring a balanced and resilient energy mix. The Company also has a strong transmission and distribution footprint, with over 7,800 circuit kilometres of transmission lines, including pipeline projects, and serves over 13 million customers across its distribution businesses, making it one of India’s largest private power distribution companies. Further strengthening its leadership in future-ready energy solutions, Tata Power has established 4.9 GW of integrated solar cell and module manufacturing capacity, signed 2.8 GW of pumped hydro storage projects, and expanded its EV charging network to over 7,000 public charging points across 717 cities and towns in India. As a pioneer in India’s clean energy transition, Tata Power remains committed to achieving Net Zero by 2045 and continues to partner with public and private stakeholders to deliver reliable, sustainable, and technology-led energy solutions across the country. Disclaimer The following press release/announcement may contain forward-looking statements within the meaning of applicable securities laws and regulations. These statements are based on management's current views, expectations, assumptions, and projections regarding the Company's future performance, business plans, growth prospects, competitive and regulatory environment, and other related matter. Such forward-looking statements are subject to various risks and uncertainties, which may cause actual results to differ materially from those expressed or implied in the statements. Factors that could cause actual results to differ materially from those contemplated in the forward-looking statements are not limited to changes in economic conditions affecting demand/supply and price conditions in the domestic and overseas markets in which the Company operates, alterations in the business environment, fluctuations in Government regulations, laws, statutes, judicial pronouncements, and other incidental factor. The Company does not undertake any obligation to publicly update or revise any forward-looking statements based on subsequent events, information, or developments, except as required by applicable laws and regulations. For further information, please contact: Jyoti Kumar Bansal, Chief – Branding & Communications, Tata Adfactors PR: Power Siddharth Kumar Email: jyotikumar.bansal@tatapower.com 9902929187 Siddharth Gaur – Head Public Relations, Tata Power Email: siddharth.kumar@adfactorspr.com E-mail: siddharth.gaur@tatapower.com