Subtract 9 Hours at Going and Coming by the Speed of Gorakhdham.
Left 6 Hours. It won't go directly to yard after Arriving, will take 20 minute to yard and 20 min shunting at pf before departure. Another 40 minutes gone. LHB Rake requires Longer period of Maintainence.
Where is the time in those 16 hours for extension to Hisar?