http://edition.cnn.com/2016/09/04/travel/cnnphotos-india-trains-temporary-home/index.html
In China, the problem of large number of passengers was(is) solved by explosively extension or opening of metro and high speed rails.
But, plan for high speed rail is still pending and opening of subway or urban rail systems is not fast as China's one.
Why does Indian railway, the busiest rail company around the world, hesitate to install high speed rail systems?