Destinations: Kolkata - Darjeeling - Gangtok - Bagdogra - Pemayangtse - Thimphu - Punakha - Paro - Pheuntsoling
Destinations: Darjeeling - Gangtok - Kalimpong
Destinations: Darjeeling - Gangtok - Kalimpong - Lachung - Pelling
Destinations: Darjeeling - Gangtok - Pelling