I assume the list is of daily trains, else trains from Guwahati to South will surely be part of the list. Surprised at the exclusion of Coromandel which i thought was always crowded most of the year. Also this data shows clearly shows the lack of development in East resulting in so much outward migration. If developed it can result in so better situation and less infrastructural constraints in cities.
South and West are developed hence there are hardly any trains between these sectors in the list. Moreover flights, bus service in these sectors are so good that the crowd evens out