The journey from Rajpur Sonarpur to Gangtok involves reaching Kolkata, then taking an overnight train to New Jalpaiguri (NJP). From NJP, you must hire a shared or private taxi to cover the final 120 km mountainous stretch. The total distance is approximately 680 km. The route follows NH 10 through the scenic Teesta River valley. Expect a total travel time of 14 to 16 hours depending on train connectivity.
Total Distance: Driving distance 680 km, straight-line air distance 540 km.
Book your NJP to Gangtok shared taxi from the pre-paid counter outside the station.
March to May for rhododendrons and October to December for clear Kanchenjunga views.