The journey from Kullu to Guwahati covers 2200 km. You must take a bus to Delhi and then a train to Guwahati. The train journey from Delhi to Guwahati takes about 30-35 hours via the Rajdhani Express. This route connects the Himalayas to the gateway of the Northeast. Expect a total travel time of 50-60 hours including transfers.
Total Distance: 2200 km by road, 1700 km air distance.
Rajdhani Express is the most comfortable train for this route.
October to March for pleasant weather in Guwahati.