Field Gun Factory Kanpur is the youngest of the eight Weapons, Vehicles and Equipment factories in the Indian ordnance ecosystem, and official AWEIL material describes it as a self-contained unit for producing large-caliber ordnance. Its published factory description traces the requirement to the Indo-Pak war of 1965 and the 1971 Bangladesh Liberation War, when India needed more artillery equipment and chose to build a dedicated field-gun production unit with steel preparation, heat treatment, machining, inspection, final assembly, proof fire, and issue facilities.
After the 2021 corporatisation of the Ordnance Factory Board, FGK became part of Advanced Weapons and Equipment India Limited, a Government of India enterprise under the Ministry of Defence. Its catalog relevance comes from the Indian 105 mm field-gun family and from later component and refurbishment work, including Ministry of Defence reporting that FGK manufactures barrel and breech assemblies for artillery guns and tanks including Dhanush and T-90.
Artillery gun productionLarge-caliber ordnance manufacturingBarrel and breech assembliesArtillery components and sparesArtillery refurbishment and modernization
Public records use both the longer Field Gun Factory, Kanpur name and the FGK shorthand. The 2021 corporatisation split the old OFB structure into new DPSUs, so older and newer government documents describe the same unit under different corporate wrappers.