States arranged in Ascending order, based on the rail density per 1000 Sq. Km
sources: for RKM: click here
for state area: click here
There may be a slight error in densities for Goa and seven sisters states (the ones that form NE part of India) as the data wan't directly available, so had to calculate it with help from Atlas. Also, area of...
more... JK takes into account the disputed areas.