Press Release

October 27, 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 Signs MoU with BPCL to Develop 110 kV Power Infrastructure for its Landmark PRFCCU Project at Mumbai Refinery”. 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 Signs MoU with BPCL to Develop 110 kV Power Infrastructure for its Landmark PRFCCU Project at Mumbai Refinery Mumbai October, 27, 2026: Tata Power, one of India’s largest integrated power companies has signed a Memorandum of Understanding (MoU) with Bharat Petroleum Corporation Limited (BPCL) for the development of 110 kV power infrastructure to meet the 90 MW power requirement of BPCL’s Petro Resid Fluidized Catalytic Cracking Unit (PRFCCU) project at its Mumbai Refinery. The PRFCCU project is a landmark initiative in India’s refining sector - the first project of its kind being executed in India, and a strategic milestone in BPCL’s journey towards higher-value product recovery and petrochemical diversification. With a processing capacity of 3 million metric tonnes per annum (MMTPA) and a project outlay of approximately ₹14,203 crore, it is BPCL’s second-largest project currently under execution and the largest ever undertaken at Mumbai Refinery. By enhancing domestic value addition, PRFCCU will contribute to India’s energy security and the national vision of Aatmanirbhar Bharat. Under the MoU, Tata Power will provide 110 kV connectivity and undertake the design and development of the associated power infrastructure required to meet the project’s power requirement. The infrastructure development entails a significant investment in strengthening power connectivity and transmission infrastructure. This infrastructure development is envisaged to be completed over approximately 24 months with a combined estimated outlay of approx. ₹ 250 crore for Tata Power and BPCL, subject to applicable approvals and project milestones. Beyond meeting BPCL’s immediate power requirements, the initiative will strengthen Tata Power’s transmission network in the Trombay area, supporting anticipated growth in electricity demand from large industrial consumers and other concentrated-load developments in this strategically important industrial zone. As part of its long-term plan to build a robust, reliable and future-ready power network for Mumbai, Tata Power also plans to strengthen its transmission infrastructure at Trombay through the development of a 400 kV transmission facility over the next five years. This planned augmentation is expected to enhance power evacuation capability and support reliable grid availability for Mumbai’s industrial and commercial ecosystem. Through this strategic collaboration, Tata Power and BPCL reaffirm their commitment to strengthening Mumbai’s energy infrastructure and enhancing energy security. It also reinforces Tata Power’s commitment of investing in transmission & distribution infrastructure to support long term industrial growth & energy self-reliance. 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, Siddharth Kumar, Adfactors PR Tata Power +91-9902929187 Email: jyotikumar.bansal@tatapower.com Email:siddharth.kumar@adfactorspr.com Siddharth Gaur – Head Public Relations, Tata Power E-mail: siddharth.gaur@tatapower.com