Gangtok is accessed via Siliguri, which serves as the gateway to Sikkim. From Ramnarayanpur, travel to Kolkata and take a train to New Jalpaiguri (NJP). From NJP, you will take a taxi or bus for the 120 km climb to Gangtok. The journey takes you through the lush Teesta River valley.
Total Distance: Driving distance 700 km, Air distance 450 km.
Book your train to NJP well in advance as this route is very popular.
March to May and October to mid-December for clear mountain views.