Bharat Wagon and Engineering Limited (BWEL) is a Public Sector Undertaking (PSU) of the Government of India and is a subsidiary of Bharat Bhari Udyog Nigam (BBUNL). Established in 1978, BWEL is the largest rail wagon manufacturer in India. The administrative control of M/s Bharat Wagon & Engg Co Ltd (BWEL), Patna, a central PSE and subsidiary of Bharat Bhari Udyog Nigam Ltd (BBUNL) is transferred from the Department of Heavy Industry, Ministry of Heavy Industries and Public Enterprises to the Ministry of Railways w.e.f 13 August 2008 (AN). The company maintains three manufacturing plants in Bihar and is headquartered in Patna. One such plant is the Bharat Wagon Workshop Plant in Muzaffarpur. In fiscal 2006, the company incurred aggregated revenues of 154.4 million (US$2.6 million).