Mixed reports on this. Some news came few months ago that there are some issues in ERS pit line for accommodating and maintaining this train. Later on it was mentioned that it is sorted.Ths fastest train currently is taking 10.5 hrs.
With speed restrictions in ERS-SRR by pass stretch and then again in PGT-CBE stretch, the only place where train can attain maximum speed is between SRR bypass- to PGT and then CBE-SBC. Not sure if train can cover entire end to end journey in 8-9 hrs !! For the same rake to return , the TT might end up being very odd. We will have to wait and see. Not sure if VB sleeper will be introduced later in this route