Press Release

HQ/CS/CL.24B/18500 August 25, 2026 National Stock Exchange of India Limited BSE Limited Exchange Plaza, Bandra Kurla Complex, P.J. Towers, Dalal Street, Mumbai – 400 051 Mumbai – 400 001 SYMBOL: TATACOMM Scrip Code: 500483 Dear Sir / Madam, Sub: Press Release - Tata Communications, Tata Motors Passenger Vehicles join forces to accelerate Software-Defined Vehicle Deployment in India – Introduces in-built 5G cellular connectivity in the Sierra.ev. Please find attached herewith the press release on the captioned subject being issued today. Kindly take the same on your records. Thanking you, Yours faithfully, For Tata Communications Limited Zubin Adil Patel Company Secretary and Compliance Officer Tata Communications Limited Plot No. C21 & C 36 ‘G’ Block Bandra Kurla Complex Bandra (East) Mumbai 400098 India Regd. Office: VSB Mahatma Gandhi Road Fort Mumbai – 400 001 Tel: 91 92289 18171 email: investor.relations@tatacommunications.com CIN: L64200MH1986PLC039266 website: www.tatacommunications.com PRESS RELEASE Tata Communications, Tata Motors Passenger Vehicles join forces to accelerate Software-Defined Vehicle Deployment in India – Introduces in-built 5G cellular connectivity in the Sierra.ev Mumbai, India, 25th August 2026 — Tata Communications, a leading global communications technology player and Tata Motors Passenger Vehicles (TMPV), India’s leading automobile manufacturer, today announced collaboration to power the newly launched Sierra.ev, with in-built 5G cellular connectivity, paving the way for futuristic Software-Defined Vehicles (SDVs). Tata Communications MOVE™ Connected Vehicle Platform will be integrated with the car’s new SDV platform – N.IO – to provide seamless connectivity and digital first in-vehicle experiences to its customers. This technology deployment will ensure that vehicles are future ready and scalable for advanced connected vehicle capabilities while supporting AI-enabled applications. The Sierra.ev aims to provide its customers with enhanced safety features and in-vehicle experiences. Tata Communications MOVE™ will enable this with a smooth onboarding journey, in- vehicle secured connectivity for seamless content streaming, faster over-the-air updates, and an option for users to buy additional subscription packs, while ensuring safety critical features like emergency calls, remote support and remote vehicle diagnostics in real time. Tata Communications is committed to bringing TMPV’s vision to reality – to transform their vehicles into continuously connected digital experiences that provides uninterrupted infotainment, offer personalisation, improve fleet efficiency, and open new avenues for revenue generation. This collaboration will ensure TMPV is future-ready with seamless connectivity, intelligent services, and continuous feature updates that redefine customer experience. Vivek Manglik, Executive Vice President – Interaction Fabric, Tata Communications, said: “Tata Motors Passenger Vehicles has consistently set benchmarks for innovation in the automotive industry, and we are excited to collaborate on the launch of the Sierra.ev. As vehicles evolve into intelligent ecosystems that enable a growing range of services and applications, the underlying digital fabric will be central to fostering innovation and scaling new capabilities. This collaboration reflects a shared commitment to shaping a smarter mobility experience that will securely enhance convenience and personalisation.” Sven Patuschka, Chief Technology Officer, Tata Motors Passenger Vehicles Ltd., added: “As vehicles become increasingly software-defined, highly intuitive digital connectivity and services will play a central role in shaping customer experiences. The Sierra.ev marks an important step in this evolution, and our collaboration with Tata Communications provides the robust digital backbone required to deliver seamless connectivity, continuous innovation, and enhanced in-vehicle experiences. Together, we are enabling technologies that allow vehicles to adapt, improve, and deliver greater value throughout their lifecycle.” Media Contact: Aastha Singh aastha.singh2@tatacommunications.com About Tata Motors Passenger Vehicles Ltd. (Formerly Tata Motors Ltd) Part of the USD 180 billion Tata Group, Tata Motors Passenger Vehicles Ltd. ('the Company'*, BSE: Scrip code 500570; NSE: Scrip code TMPV) is one of India’s leading automobile manufacturers, offering a diverse portfolio of cars and SUVs renowned for their design, safety, and performance. The Company delivers multi- powertrain options, advanced connected technologies, and intelligent personal mobility solutions. Known for its innovation, reliability, and engineering prowess, the Company is at the forefront of India’s electric vehicle revolution, accelerating the nation’s shift toward sustainable mobility. It continues to drive progress across zero emission, connected, and future ready mobility solutions, supported by robust design and R&D capabilities. *In terms of a Composite Scheme of Arrangement sanctioned by the Hon’ble National Company Law Tribunal, Mumbai Bench, the name of the Company was changed from Tata Motors Limited to Tata Motors Passenger Vehicles Limited w.e.f. October 13, 2025. Media Contact Information: Tata Motors Passenger Vehicles Corporate Communications: +91 22-66657613 / pvcomms@tatamotors.com To know more, please visit https://cars.tatamotors.com/; also follow us on X: https://x.com/tatamotors_cars/ About Tata Communications A part of the Tata Group, Tata Communications (NSE: TATACOMM; BSE: 500483) is a global digital ecosystem enabler powering today’s fast-growing digital economy in more than 190 countries and territories. Leading with trust, it enables digital transformation of enterprises globally with collaboration and connected solutions, core and next gen connectivity, cloud hosting and security solutions and media services. 300 of the Fortune 500 companies are its customers and the company connects businesses to 80% of the world’s cloud giants. For more information, please visit www.tatacommunications.com AD ewshcritipet xio inn aau ctiorcmleatically generated AD egsrceryip ctiirocnle a wutitohm balaticcka ltleyx gtenerated AD elosgcroip otfio an c aaumtoemraatically generated Forward-looking and cautionary statements Certain words and statements in this release concerning Tata Communications and its prospects, and other statements, including those relating to Tata Communications’ expected financial position, business strategy, the future development of Tata Communications’ operations, and the general economy in India, are forward-looking statements. Such statements involve known and unknown risks, uncertainties and other factors, including financial, regulatory and environmental, as well as those relating to industry growth and trend projections, which may cause actual results, performance or achievements of Tata Communications, or industry results, to differ materially from those expressed or implied by such forward-looking statements. The important factors that could cause actual results, performance or achievements to differ materially from such forward-looking statements include, among others, failure to increase the volume of traffic on Tata Communications’ network; failure to develop new products and services that meet customer demands and generate acceptable margins; failure to successfully complete commercial testing of new technology and information systems to support new products and services, including voice transmission services; failure to stabilize or reduce the rate of price compression on certain of the company’s communications services; failure to integrate strategic acquisitions and changes in government policies or regulations of India and, in particular, changes relating to the administration of Tata Communications’ industry; and, in general, the economic, business and credit conditions in India. Additional factors that could cause actual results, pe [Showing first 8,000 characters — download PDF for full document]