Bagging/Receiving of orders/contracts

Larsen & Toubro Limited e LARSEN & TOUBRO Secretarial Department L&T House, Ballard Estate Narottam Morarjee Marg Mumbai - 400 001, INDIA Tel: +91 22 6752 5656 Fax: +91 22 6752 5858 www.Larsentoubro.com Email: igrc@larsentoubro.com CIN:L99999MH1946PLC004768 SEC/2026 September 9, 2026 BSE Limited National Stock Exchange of India Limited Phiroze Jejeebhoy Towers, Exchange Plaza, 5th Floor Dalal Street, Plot No.C/1, G Block MUMBAI - 400 001 Bandra-Kurla Complex STOCK CODE: 500510 Bandra (E), Mumbai - 400 051 STOCK CODE: LT Dear Sirs, Re : L&T Wins Large* Offshore Order from ONGC We enclose herewith a copy of Press Release that is being issued by the Company today, in connection with the above. We request you to take note of the same. Thanking you, Yours faithfully, for LARSEN & TOUBRO LIMITED SUBRAMANIAN NARAYAN COMPANY SECRETARY & COMPLIANCE OFFICER (ACS 16354) An ISO 9001:2015 Certified Department (9 LARSEN & TOUBRO www l,irsento1Jbro rom L&T House L&T Press Release Ballard Estate, Mumbai 400 001 Tel: 91 22 6752 5656 Issued by Corporate Brand Management & Communications CIN: L99999MH1946PLC004768 L&T Wins Large* Offshore Order from ONGC Mumbai, September 09, 2026: L&T Energy Hydrocarbon Offshore (LTEH Offshore) has secured a large offshore order from the Oil & Natural Gas Corporation (ONGC) for the Additional Development of Ratna–I (ADR I) and NLM-14 project off India's west coast. The project involves engineering, procurement, construction, installation and commissioning (EPCIC) of three new well-head platforms, one riser platform, multiple segments of subsea pipelines and cables, and brownfield modifications to existing offshore installations. The project is aimed at enhancing production and supporting the continued development of ONGC's offshore assets in the region. LTEH Offshore is a leading provider of integrated EPCIC solutions for the offshore oil and gas industry. Supported by robust in-house engineering capabilities, world-class fabrication facilities and a dedicated fleet of marine vessels, it has successfully delivered complex shallow-water and deep-water developments across global markets. Over the past four decades, LTEH Offshore has executed a wide range of projects, including fixed platforms, subsea pipelines and structures, brownfield upgrades, as well as decommissioning assignments. Commenting on the order win, Parthasarathi Chatterjee, Senior Vice President & Head – L&T Energy Hydrocarbon Offshore, said: “The ADR-I and NLM-14 developments are significant additions to India's offshore energy infrastructure and demonstrate the continued investment in enhancing production from established offshore assets. These projects combine new offshore facilities with brownfield modifications in existing operating fields, calling for careful planning, engineering integration and precise execution. Drawing on our extensive offshore EPCIC experience, we look forward to delivering these developments safely and efficiently, while supporting ONGC’s long-term production objectives”. Background: Larsen & Toubro is a USD 32 billion Indian multinational engaged in EPC Projects, Hi-Tech Manufacturing, Products and Services, operating across diverse domains and multiple geographies. With a strong impetus towards AI & technology, customer–focused approach and the constant quest for top-class quality have enabled L&T to attain and sustain leadership in its major lines of business for eight decades. *Order Classification Classification Significant Large Major Mega Ultra-Mega Value in ₹ Cr 1,000 to 2,500 2,500 to 5,000 5,000 to 10,000 10,000 to 15,000 >15,000 Media Contact: Sumeet Chatterjee Head - Corporate Brand Management & Communications sumeet.chatterjee@larsentoubro.com Sensitivity: LNT Construction Internal Use