चलती है (ग्वालियर-भोपाल वाया गुना बीना ICE) उड़ती है धूल जलते है दुश्मन खिलते है फूल - Adi Singh

Its a pseudo-Rajdhani in the catering perspective as well, besides being so in terms of speed.
The attendant will ask for your preferences Veg/Non-veg N.India/S.Indian on Day 1 at the time of boarding.
Thereafter he'd serve you all meals at the respective timings. Dinner-Bfast-Lunch-EveningTea-Soup-Dinner-Breakfas t.
At the end of Day 2, he'd bill all of it and present it to you....
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A rough figure of the total amount is 300.
The food provided is MUCH MUCH better than what they serve in SBC-NZM Rajdhani Express.
So the tip here is, when you're split between the 3A costing 2000 bucks (plus 300 for catering) for 35 hours in KSK and the one costing 3000 for 33.5 hours in the Rajdhani, decide logically.
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PS: This tip has been written from the point of view of a 3A traveler. Services in other classes may vary.