The journey from Kayathar to Dehradun is a massive 2900-kilometer trek across the length of India. You will travel through multiple states including Tamil Nadu, Telangana, and Uttarakhand. The route follows the major national highway NH 44. Given the extreme distance, this is best done by train or a combination of train and flight. Expect a travel time of 55 to 65 hours.
Total Distance: 2900 km driving distance; 2600 km straight-line air distance.
Long-distance trains are the most reliable way to cover this distance.
October to March, when the weather in Dehradun is cool and pleasant.