The route from Nongstoin to Gangtok is a long journey through the plains of Assam and West Bengal. You will travel via Siliguri, covering 650 km in about 20 hours. The route follows NH 27 and NH 10. Gangtok is the capital of Sikkim and is known for its mountain views.
Total Distance: Driving distance is 650 km; straight-line distance is 350 km.
The road from Siliguri to Gangtok is very scenic but steep.
March to June or September to December.