When Japan started building high speed rail in the sixties, the world laughed at it saying that the era of trains is over. Fifty years later, Japan's railways have literally merged two of their cities in one making huge economic benefits possible. Whilst the US still can't figure out to connect LA and SF for over twenty years. China started fifteen years ago and now has more high speed rail than EVERY OTHER country combined. India lags behind Europe as well. If High Speed Rail isn't built in India right now, it'll be much late.