Mission North-Eastern India for IR... good to see that apart from Assam, other states from the region are also considered for IR Network Expansion... Guwahati - Dudhnoi - Mendipathaar - Shillong Route is one such marvel... Guwahati - Naharlagun - Itanagar and Siliguri - Gangtok are also on the plans :-D
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PS: IR may be planning BG track routes on Dimapur - Agartala, Dimapur - Gangtok and Dimapur - Implal/Aizwal Routes also... sorry if I have mixed up the route data :-)