Speed up of this train has happened. But notification is still not given. AFAIK 12176:- GWL 07.50; 98 JHS 09.35/45; 359 CKTD 14.15/20; 389 MKP 14.55/15.05; 482 PCOI 16.50/17.05; 626 DDU 19.35/50; 831 GAYA 23.05; 1030.7 DHN 02.10/20; 1089 ASN 03.18/28; 1131.1 DGR 04.07/09; 1194.5 BWN 05.08/10; 1289 HWH 06.50| 1289 kms in 23 hrs 00 mins @ 56 kph. 12175:- HWH 17.40; BWN 18.56/58; DGR 19.53/55; ASN 20.34/44; DHN 21.45/55; GAYA 01.10; DDU 04.25/40; PCOI 07.10/20; MKP 09.05/15; CKTD 09.50/55; JHS 14.45/15.00; GWL 16.40| 1289 kms in 23 hrs 00 mins @ 56 kph. 12175 speed up by 20 mins & 12176 speed up by 15 mins.
Plz...
more... wait for official notification.