The journey from Kulamavu to Kolkata covers about 2200 km. The most practical way is to take a bus to Ernakulam and then a train to Kolkata. The train journey takes about 35 to 40 hours. This is a long journey, so plan accordingly.
Total Distance: Driving distance is 2200 km; straight-line air distance is 1700 km.
Book your train tickets well in advance.
October to March is the best time to visit Kolkata.