The Audit Jurisdiction of Office of the Principal Director of Audit, Railway Production Units & Metro Railway covers: -
Banaras Locomotive Works, Varanasi
Chittaranjan Locomotive Works, Chittaranjan
Metro Railway, Kolkata
Public Sector Undertakings (Railways) consist of Kolkata Metro Railw Corpration Ltd. (KMRCL), Braithwate & Co. Ltd. (BCL) and Braithwate NACOF