The journey from Kayathar to Gangtok is a massive 2700-kilometer trek across the length of India. You will travel through multiple states including Tamil Nadu, Telangana, and Sikkim. 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 60 to 70 hours.
Total Distance: 2700 km driving distance; 2400 km straight-line air distance.
Long-distance trains are the most reliable way to cover this distance.
October to March, when the weather in Gangtok is cool and pleasant.