Traveling from Sarath to Gangtok involves a journey of roughly 500 km. You should take a train from Jasidih to New Jalpaiguri (NJP). From NJP, you can hire a shared or private taxi for the 4-hour drive up to Gangtok. The route passes through the scenic plains of North Bengal before climbing into the Himalayas. Expect a total travel time of 15 to 18 hours.
Total Distance: Driving distance is 500 km; straight-line air distance is 380 km.
Book your NJP to Gangtok taxi in advance during peak tourist season.
March to May or October to mid-December for clear mountain views.