See, Its ok for France and other European nations to look at such trains as they have the infratructure. Also, the distance between the borders makes it relatively convenient to travel by trains rather than flight when you take into consideration the checkin time, etc..etc.. India is a large country, and our air transport infrastructure is increasing at a rapid pace. More and more people will opt to travel by planes rather than trains. Also, if I have to make an honest prediction. In the next 25 years, the Indian Railways will be in the same boat as AMTRAK in the US. The indian mass is going to have the money power to travel by other means. I firmly believe, trains are not the mode of transportation for the Indian masses taking into consideration the rate of growth and development right now.
