Larsen & Toubro Ltd. is an investment holding company, which engages in technology, engineering, construction, manufacturing, and financial activities. It operates through the following business segments: Infrastructure; Power; Defence Engineering; Heavy Engineering; Hydrocarbon; Information Technology and Technology Services; Financial Services; Developmental Projects; and Others. The Infrastructure segment comprises of engineering and construction of building and factories, transportation infrastructure, heavy civil infrastructure, power transmission and distribution and water and renewable energy projects. The Power segment includes turnkey solutions for coal-based and gas-based thermal power plants including power generation equipment with associated systems and balance-of-plant packages. The Defence Engineering segment comprises of design, development, and serial production and through life-support of equipment, systems and platforms for Defence and Aerospace sectors; and design, construction, and repair/refit of defence vessels. The Heavy Engineering segment manufactures and distributes custom designed, engineered critical equipment & systems to core sector industries like fertiliser, refinery, petrochemical, chemical, oil & gas, thermal & nuclear power, aerospace and defence.. The Hydrocarbon segment provides engineering procurement, construction and commissioning solutions for the global oil and gas Industry from front-end design through detailed engineering, modular fabrication, procurement, project management, construction, installation and commissioning. The Information Technology and Technology Services segment offers information technology and integrated engineering services. The Financial Services segment relates to the retail and corporate finance, housing finance, infrastructure finance, general insurance, asset management of mutual fund schemes and related advisory services. The Developmental Projects segment develops, operates, and maintains basic infrastructure projects, toll collection including annuity based projects, power development, development and operation of port facilities and providing related advisory services. The Others segment encompasses metallurgical and material handling systems, realty, shipbuilding and integrated engineering services. The company was founded by Henning Holck-Larsen and Soren Kristian Toubro in 1938 and is headquartered in Mumbai, India.