The journey from Mandawar to Dehradun is approximately 600 km. You should travel to Delhi first, then take a train or bus to Dehradun. The route takes you through the plains of Haryana and into the foothills of the Himalayas. The total travel time is around 12 to 14 hours. Dehradun serves as the gateway to Mussoorie and other hill stations.
Total Distance: 600 km by road, 520 km by air.
The Jan Shatabdi is a great option for day travel.
March to June and September to November.