So the conclusion is following:-
(1) You should keep a big bottle of ice cool water with you as the water-bottle provided to you will soon become lava.
(2) Early Overtake of Gomti and Mahabodhi is required to escape some extra delay.
(3) Morning trains' traffic near MGS will affect the Performance of HD.
(4)...
more... Food is nice, no special need of carrying anything.