AppointmentsCentralEventsPress ReleasesState Subrat Das appointed as CVO- Ordnance Factory Board By saurabh - February 14, 2017 0 314 FacebookTwitterPinterestWhatsApp OFB_indianbureaucracy Shri Subrat Das, IPoS (1991) has been appointed as Chief Vigilance Officer (CVO) in Ordinance Factory Board (OFB), Kolkata under the department of Defence Production. IndianBureaucracy.com wishes Shri Subrat Das the very best.