The journey from Shangarh to Kolkata covers about 1900 km. You will travel from Shangarh to Sainj, then take a bus to Chandigarh, and finally a train or flight to Kolkata. The route takes you from the mountains to the city of Kolkata. Expect a total travel time of around 32 to 36 hours by train.
Total Distance: 1900 km by road, 1600 km air distance.
Trains from Chandigarh to Kolkata are very convenient.
October to March for pleasant weather.