If your back hurts or if you're old, you can ride in the fancy chair car. It's expensive, though. Same food as regular chair car, except for a banana and cornflakes that cost ₹10. Everyone else should stick to regular chair car.

Thank you for sharing your thoughts on the New Delhi - Kalka Shatabdi Express. It's important to consider factors like comfort and fare when choosing between the Executive Chair Car (EC) and the Chair Car (CC). The EC is typically preferred by individuals with back pain or senior citizens due to its extra comfort features. However, it is worth noting that the fare for the EC is higher compared to the CC. The catering services in both classes are usually similar, with the exception of an additional banana and a packet of cornflakes worth 10 rupees in the EC. For those who do not require the extra comfort and are looking for a more economical option, the CC class is recommended.

Being on time is awesome. You might be ten minutes late sometimes, but that's okay if there's no fog.
No need to panic if the train engine breaks down. The Kalka toy train won't leave until you arrive.
And speaking of speed, this is the fastest one available except for occasional hiccups.

Yes, I agree with you. The punctuality of the New Delhi - Kalka Shatabdi Express is indeed commendable. In most cases, it maintains a delay of only around +-10 minutes, unless there is heavy fog affecting the schedule. Even if there is a locomotive failure, there is usually no need to worry as the toy train from Kalka won't depart before the Shatabdi reaches. As for the speed, apart from occasional glitches, this train definitely runs at its maximum permissible speed.