The journey from Nainbagh to Guwahati covers about 1900 km. You must travel by road to Dehradun, then take a train to Delhi, and finally a long-distance express train to Guwahati. This route connects the Himalayan foothills with the Brahmaputra valley. Expect a total travel time of 48 to 54 hours.
Total Distance: 1900 km by road, 1600 km straight-line.
Book well in advance as this route is very popular.
October to March for pleasant weather.