Kalka Shatabdi departs from New Delhi at sharp 7:40 am and reaches Chandigarh at 11:05am. The entire journey is all of 3. 25 hrs and is the smoothest that you can ever experience. This is the train to pick every time you visit Chandigarh because it is the fastest train there is - CHG Shatadbi(evening) comes quite close and takes 3:30 hrs. However, if you want to make use of your full day be it personal or official, Kalka Shatabdi is the one you want.
I travelled in the CC coach - it was an official journey as I had to meet a client but I extended my trip and stayed back over the weekend to explore the place.
Be warned - the AC is very cold and if you do not take a jacket or blazer or shawl, you will experience 3. 25 hrs of winter chill you did not expect. Seats were in very good condition - you should definitely opt for the window seat. I love travelling by trains and looking out of the window and watch nature pass by fleetingly. Houses, people, trees, animals, cars on the road - each telling a different story.
You will be provided a newspaper - ET, TOI whatever you prefer. Breakfast - veg, non veg, south indian. Tea or coffee - twice :) if I remember correctly - juice too.
Charger is there just beside your seat so you do not have to worry if your battery needs recharging in the middle of the journey.
Best possible way to visit Chandigarh in the minimum amount of time with the maximum amount of comfort.