The route from Guwahati to Dehradun covers approximately 1900 km. You can take a train from Guwahati to Delhi and then a connecting train to Dehradun. The journey takes you from the humid plains of Assam to the scenic foothills of the Himalayas. Dehradun serves as the gateway to Mussoorie and other hill stations in Uttarakhand.
Total Distance: 1900 km by rail, 1500 km air distance.
The Dehradun Shatabdi from Delhi is a great option.
March to June and September to November.