In IR we need six parallel tracks from NDLS to MAS . Two lines for superfast trains with speed of 200km/hr and stops at every 100km interval. Two tracks for slow passengers and goods trains. Two tracks for supporting for fast tracks for continuous maintenance. Crossed four parallel tracks from Kolkatta , Mumbai, bubhaneswar, ahmedabad, Hyderabad and so and so as many as links to the above NDLS-MAS tracks. If railway construct such a structure we can reach within 12 hours e whatever may be our source and destination. Means every 15 min one train has to pass on these tracks like Mumbai local trains.We may not required reservation also. Please request everybody.