Departure to early Morning ho sakta hai lekin best case me 5 hrs & 50 min GWL-BPL and 2hrs & 50 min BPL-UJN. (Isse kam time Intercity ke lie nahin de paenge). . .
Total hua 8 hrs & 40 min.
20 minutes stop atleast at BPL for LOCO Revarsal.
30-35 minute stoppage at UJN for LOCO Revarsal and minor cleaning and maintenance...
more... activities before starting next run.
Total time 9 hrs & 35 min. ( 19 hrs 10 min for complete round trip)
Consider around 20 minute delay on single run so for round trip it will be 30-35 min (Best Case).
So the Final Total Running Time this Train Require will be ~ 10 hrs (One Way) & ~ 19 hrs 50 min to 20 hrs 10 min (In Best Case)
Now for next day trip train must be placed on the platform at least 30 minutes prior to its departure.
So the time ground staff have for looking after the train is ~ (24 hrs) - (20 hrs) - (30 min) =~ 3hrs 30 min
So, Is it possible to fully examine whole rake, wash the rake, perform maintenance (If required) in mere 3 hrs 30 min.