The journey from Imphal to the cultural capital of India, Kolkata, is best done by flight. You can fly from Imphal (IMF) to Kolkata (CCU) in about 1.5 hours. There are no direct trains or buses that are practical for this long-distance journey.
Total Distance: 1000 km by road, 700 km air distance.
Flights are the only practical option.
October to March for pleasant weather.