Larsen & Toubro Limited engages in engineering, construction, and manufacturing operations worldwide. The Infrastructure segment engineers and constructs building and factories, transportation infrastructure, heavy civil infrastructure, power transmission and distribution, water and effluent treatment, smart world, and communication projects, as well as metallurgical and material handling systems. The Power segment offers turnkey solutions for coal-based and gas-based thermal power plants, including power generation equipment with related systems and balance-of-plant packages. The Heavy Engineering segment manufactures and supplies custom designed, engineered critical equipment and systems to the fertiliser, refinery, petrochemical, chemical, oil and gas, and thermal and nuclear power industries. The Defence Engineering segment designs, develops, prototypes, produces, delivers, commissions, and supports equipment, systems, and platforms for the defense and aerospace sectors. It also designs, constructs, commissions, repairs/refits, and upgrades of defense vessels. The Others segment offers realty; hydrocarbon; markets and services construction and mining machinery and parts; industrial valves; and manufactures and sells rubber processing machinery. The company was founded in 1938 and is headquartered in Mumbai, India.