If we trace the path of this train from Howrah, the kilometre count starts from 0 and goes upto 878+ till VSKP. (Hope Raam** or any other VSKP member can furnish the exact figure for VSKP station distance-wise vis-a-vis HWH, as appears on the electric pole nearest to or at the station). After loco reversal at VSKP the train retraces its path till the post bearing number 872/6 on the VSKP-HWH track before changing to the MAS bound line at 771/39. I observed this during my recent return trip from SBC to HWH by 12864 YPR-HWH Exp.
Hope for ratification from Raam or others in the know of the figures.