Regional Training Institute, Kolkata, started functioning initially as a Regional Training Centre at Park Street, Kolkata-700 016 from April 1998 under the administrative control of the Principal Director of Audit, Eastern Railway. The Regional Training Centre was upgraded to Regional Training Institute (RTI) in January 1999. An exclusive Principal Director for RTI took over charge from October 2003 and since April 2005, the Institute has been functioning at 3rd MSO Building, CGO Complex, 5th floor, ‘A’ Wing, DF Block, Salt Lake, Sector-I, Kolkata-700064.