The Karanataka Tourism office offers a luxury train through the state called Golden Chariot.
A lot of people on this forum have been asking me for my opinion about this train. I think it is a great itinerary an showcases some really diverse things.
I thought I'd also list Anita Bora's first-hand review and photos of the Golden Chariot, for those of you who are interested.
Anita is a Bangalore-based lady, who has a very interesting blog.
Please add more reviews from individuals if you find them.