Larsen & Toubro has announced the successful acquisition of major Engineering, Procurement and Construction (EPC) contracts for power transmission projects across domestic and international markets through its Power Transmission & Distribution (PT&D) vertical. The company disclosed these developments in an official press release issued on February 25, 2026, demonstrating its continued strength in the power infrastructure segment.

Contract Portfolio Overview

The secured contracts encompass a comprehensive range of power transmission infrastructure development across key regions. According to L&T's order classification system, these projects fall under the "Major" category, indicating a value range of ₹5,000 to ₹10,000 crore.

Domestic Infrastructure Development

The Indian component focuses on strengthening power transmission infrastructure in West Bengal's industrial heartland. The project involves design, supply and construction of two 220 kV Gas Insulated Substations specifically located in the Durgapur-Raniganj-Asansol industrial belt. The scope includes associated transmission line segments featuring advanced conductors and multi-circuit towers, aimed at providing stable voltage profiles and enhanced reliability for infrastructure and industrial projects in the region.

International Market Expansion

The Middle East contracts represent significant international undertakings spanning three different countries in the region. PT&D has secured orders from key utilities for turnkey construction of five substations complemented by over 250 km of transmission lines, with projects reaching up to 500 kV level. One notable project includes supplying and installing a 400 kV underground cable system, showcasing the company's technical capabilities in complex power infrastructure.

Strategic Market Context

According to the company's statement, grid investments have become high-priority areas for economic leaders due to surging demand, shifting energy mix, and security-driven initiatives. These contract wins reflect customer trust in L&T's ability to deliver safe, sustainable, and timely grid infrastructure solutions. The orders strengthen L&T's position as a leading player in power transmission infrastructure, spanning both domestic and international markets with substantial additions to the company's order book.

Larsen & Toubro has officially announced securing a significant contract from the Department of Atomic Energy for the LIGO India Observatory project. The company issued a formal press release under Regulation 30, confirming this major win that adds substantial value to its order book and reinforces its position in complex scientific infrastructure development.

Contract Details and Scope

The comprehensive contract involves two business verticals of L&T - Heavy Civil Infrastructure (HCI) and Heavy Engineering (HE) - working jointly on this prestigious project. The LIGO India Observatory will be established at Aundha in Maharashtra's Hingoli district.

Technical Specifications

L&T's project scope encompasses comprehensive engineering, procurement and construction of vibration sensitive specialised high-precision civil infrastructure. The technical requirements include manufacturing and installation of ultra-high vacuum compatible 8 KM beam tube and critical equipment for vacuum infrastructure.

The project also involves integration of mechanical, electrical, HVAC, fire protection, vacuum control, monitoring system and all support utilities, demonstrating the complexity and technical sophistication required for this scientific facility.

Project Significance

LIGO (Laser Interferometer Gravitational Wave Observatory) is used for detection of gravitational waves caused by cataclysmic cosmic events through multikilometer-scale wave detectors using laser interferometry. This initiative represents one of India's flagship 'Mega Science' projects, developed through collaboration between premier Indian research institutions including RRCAT and IPR, and the LIGO Laboratory of the United States, with support from Caltech and MIT.

Strategic Impact

This prestigious order reinforces L&T's strong track record and proven expertise in delivering complex projects in the field of science and technology. The formal announcement under Regulation 30 highlights the materiality of this contract win for the USD 30 billion Indian multinational, which has maintained leadership in its major lines of business for eight decades through a strong customer-focused approach and constant quest for top-class quality.