The distance from Banka to Gangtok is approximately 600 km. You can travel by road to Bhagalpur and take a train to New Jalpaiguri, then a taxi to Gangtok. The route passes through the plains of Bihar and West Bengal, reaching the mountains of Sikkim. Expect a travel time of 12 to 14 hours by train and road. Gangtok is the capital of Sikkim.
Total Distance: 600 km by road, 500 km air distance.
Book your taxi from New Jalpaiguri to Gangtok in advance.
March to June and September to December.