The Indian Ordnance Factories Service (IOFS) is a civil service of the Government of India. IOFS officers are Gazetted (Group A) defence-civilian officers under the Ministry of Defence. They are responsible for the management of the Indian Ordnance Factories, which provide the sinews of self-reliant, indigenous, defence production capabilities of the nation,is engaged in research, development, production, testing, marketing and logistics of a comprehensive product range in the areas of air, land and sea systems. It comprises forty-one Ordnance Factories, nine Training Institutes, three Regional Marketing Centres and four Regional Controllerates of Safety, which are spread all across the country.OFB is the world’s largest government operated production organisation
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