OFB

Ordnance Factory Board (OFB), consisting of the Indian Ordnance Factories, now known as Directorate of Ordnance (Coordination & Services) was an organisation, under the Department of Defence Production (DDP) of Ministry of Defence (MoD), Government of India.The 41 Indian Ordnance Factories have been converted into 7 Defence Public Sector Undertakings (DPSUs).

OFB was the 37th-largest defence equipment manufacturer in the world, 2nd-largest in Asia, and the largest in India.[10] OFB was the world’s largest government-operated production organisation,and the oldest organisation in India. It had a total workforce of about 80,000.It was often called the “Fourth Arm of Defence”, and the “Force Behind the Armed Forces” of India.[17][18] Its total sales were at US$3 billion (₹22,389.22 crores) in the year 2020–’21.