Updates

TCS/PR/SE/17/2026-27 July 13, 2026 National Stock Exchange of India Limited BSE Limited Exchange Plaza, C-1, Block G, P. J. Towers, Bandra Kurla Complex, Bandra (East) Dalal Street, Mumbai - 400051 Mumbai - 400001 Symbol - TCS Scrip Code No. - 532540 Dear Sirs, Sub: Press Release We are sending herewith copy of the Press Release titled “TCS and ABB sign multi- million, multi-year deal to transform global network operations with AI” which will be disseminated shortly. The Press release is self-explanatory. Thanking you, Yours faithfully, For Tata Consultancy Services Limited Yashaswin Sheth Company Secretary ACS 15388 Encl: as above 9th Floor Nirmal Building Nariman Point Mumbai 400 021 Tel 91 22 6778 9595 Fax 91 22 6630 3672 e-mail corporate.office@tcs.com website www.tcs.com Registered Office 9th Floor Nirmal Building Nariman Point Mumbai 400 021 Corporate Identity No. (CIN): L22210MH1995PLC084781 TCS and ABB sign multi-million, multi-year deal to transform global network operations with AI This expanded collaboration will deliver an AI-driven, secure, and standardized digital infrastructure to support ABB’s global network operations The deal marks a 20-year partnership milestone that reinforces the foundation for a future-ready network environment ZURICH | MUMBAI, July 13, 2026: Tata Consultancy Services (TCS) (BSE: 532540, NSE: TCS), a global leader in IT services, consulting, and business solutions, today announced an expanded collaboration with ABB, a global technology leader in electrification and automation, to transform its global network operations. The engagement marks the next phase of a trusted 20-year partnership. As part of this multi-million, multi-year deal, TCS will scale its role from managing infrastructure and applications to delivering end-to-end global network operations, through an integrated network-as-a-service model. TCS will help ABB improve user experience, enhance operational efficiency, strengthen security and compliance, scale service delivery, and prepare for next-generation digital operations. At the core of this engagement is ABB’s Future Network Model programme, an enterprise-wide initiative to transform its global network into a standardized, centrally managed digital infrastructure. As a strategic programme partner, TCS will design, integrate, and run ABB’s global network ecosystem as a secure, modern, and AI-driven service. It will also orchestrate ABB’s multi-vendor environment to ensure seamless, standardized operations worldwide. The programme will replace fragmented network environments with a secure, scalable, and service- driven architecture. It will use a centralized control framework to bring together: • Service integration and management (SIAM) • A global network operations center • Advanced security capabilities to safeguard infrastructure, and • Modernized local area network (LAN), wide area network (WAN) and software-defined WAN systems TCS will further enable end-to-end monitoring and orchestrations, delivering high-performance connectivity across ABB’s network services. Alec Joannou, Group CIO, ABB, said, “The Future Network Model represents an important milestone in reinforcing the digital foundation of ABB’s global operations. As our business evolves, it is critical to have an ecosystem that is resilient, secure, and aligned with long-term transformation goals. Our association with TCS reflects a shared focus on delivery excellence, continuous enhancement, and building capabilities that can support our strategic priorities.” Anupam Singhal, President, Manufacturing, TCS, said: “For over two decades, TCS has had the privilege of supporting ABB’s transformation journey, and the Future Network Model marks the next chapter in this partnership. With AI embedded into the network operations model, supported by secure digital infrastructure and our deep domain expertise, we are bringing our 'infrastructure to intelligence' approach to build a resilient, intelligent network backbone. Through this Page 1 of 3 engagement, we will enable network systems that can sense, adapt, and improve continuously, while strengthening reliability, security, user experience, and scale as ABB continues to advance as a future-ready enterprise.” Over the past two decades, the TCS-ABB partnership has delivered several transformational programmes that have strengthened ABB’s technology foundation. These include consolidating multiple ERP systems into a unified SAP platform, accelerating cloud transformation and adoption. Together, these initiatives reflect a deep, outcome-driven partnership that continues to evolve with ABB’s business priorities. About ABB ABB is a global technology leader in electrification and automation, enabling a more sustainable and resource-efficient future. By connecting its engineering and digitalization expertise, ABB helps industries run at high performance, while becoming more efficient, productive and sustainable so they outperform. At ABB, we call this ‘Engineered to Outrun.’ The company has over 140 years of history and around 110,000 employees worldwide. ABB’s shares are listed on the SIX Swiss Exchange (ABBN) and Nasdaq Stockholm (ABB). www.abb.com About Tata Consultancy Services (TCS) Tata Consultancy Services (BSE: 532540, NSE: TCS) is the technology partner of choice for industry- leading organizations worldwide. Since its inception in 1968, TCS has upheld the highest standards of innovation, engineering excellence and customer service. It has set an aspiration to become the world's largest AI-led technology services company and is enabling its clients to transform themselves across the full AI stack, from infrastructure to intelligence. Rooted in the heritage of the Tata Group, TCS is focused on creating long term value for its clients, its investors, its employees, and the community at large. With a highly skilled workforce spread across 56 countries and 194 service delivery centers across the world, the company has been recognized as a top employer in six continents. With the ability to rapidly apply and scale new technologies, the company has built long term partnerships with its clients. Many of these relationships have endured into decades and navigated every technology cycle, from mainframes in the 1970s to artificial intelligence today. TCS sponsors 14 of the world’s most prestigious marathons and endurance events, including the TCS New York City Marathon, TCS London Marathon, Tata Mumbai Marathon, and TCS Sydney Marathon with a focus on promoting health, sustainability, and community empowerment. TCS generated consolidated revenues of over US $30 billion in the fiscal year ended March 31, 2026. For more information, visit www.tcs.com Follow TCS on LinkedIn | Instagram | YouTube | X TCS media contacts: Page 2 of 3 Corporate Communication Email: corporate.communications@tcs.com & India Email: santosh.castelino@tcs.com| Phone: +91 22 6778 9999 Email: rhea.mistry@tcs.com Page 3 of 3