The Audit Jurisdiction of Office of the Principal Director of Audit, Railway Production Units & Metro Railway are as under:
- Banaras Locomotive Works (BLW), Varanasi
- Chittaranjan Locomotive Works (CLW), Chittaranjan
- Metro Railway (MR), Kolkata
- Public Sector Undertakings (Railways) consist of Kolkata Metro Rail Corpration Ltd. (KMRCL), Braithwate & Co. Ltd. (BCL) and BNSPL