Planning Manali from Kolkata is really a two part exercise. First you decide how to cover the long stretch from Kolkata to the mountains. Then you choose the Manali itinerary itself. There is no direct road or rail line that drops you in Manali. Almost everyone flies or takes a train to a northern hub, and then continues by road into the Kullu Valley. For most Kolkata travellers... https://travelcoffee.in/from-kolkata/manali-tour-packages