The journey from Dhanaulti to the coastal city of Chennai covers 2500 km. You must first reach Dehradun by road. From Dehradun, you can take a train to Chennai or a flight via Delhi. This route connects the Himalayan region to the southern coast. Expect a very long journey.
Total Distance: Driving distance is 2500 km; straight-line air distance is 2000 km.
The train journey is very long; prepare for multiple days of travel.
November to February for pleasant weather.