The journey from Karimpur to Thiruvananthapuram covers about 2300 km. You must reach Kolkata to catch a long-distance train to Thiruvananthapuram. The route takes you across the entire length of the Indian peninsula. Expect a total travel time of 45 to 50 hours. This is a very long but scenic journey.
Total Distance: 2300 km by road, 1900 km air distance.
Book tickets well in advance.
October to March for pleasant weather.