Do it and enjoy a culture experience. Let us know how it goes. Don't let some old scared westerners try to fool you out of it (I'm an American born Indian). Any idiot can fly and it won't be a special experience. While I've never done the route myself, I've done others, always in 1st class and usually AC and its been fun. It won't be a european train or anything brilliant like that, but whatever facilities an Indian train lacks will be made up for by the view, the noises, sights and the people. Isn't that why you're going to India anyways?