Special trains are ususally known to have its own special arrival timing at its Destination station.
@ The special trains are announced to clear the extra rush of passengers during seasons by deploying idle /spare coaches into the fleet. So it's common to find bad conditions of the coaches of spl trains. Note that Regular trains do and must get priority in clearance on the route over Spl trains.
@ Plz note that spl trains never have pantry car attached to it.
@...
more... Even many regular mail/express trains do not have pantry car facility and many have only pantry facility (i.e. food items / beverages uploaded from intermediate stops and stored in hot/cold cases to be later served to passengers as per order and menu card rates.