Actually in 1988, 8013/8014 number was allotted to it which later changed to 8113/8114 and then to 2813/2814. It can be verified by irfca database. The reason might be earlier this train would have been owned by kharagpur division with code 80xx and then transferred to chakradharpur division with code 81xx and then to super fast of SER with code 28xx
Aug 18 2016 (9:10AM) Loco Tag: SRC/WAP-4/22600 added by Bengal Nagpur Railway™~/85017
Steel Express - The lifeline of HWH TATA daily passengers, after its arrival on a rainy day over platform no : 20 at one of the busiest railway junction of Indian Railways - Howrah.Jn. Besides over plaftorm no : 21 is Howrah Yesvantpur Duranto Express being shunted for its scheduled departure.