The journey from Bikaner to Thiruvananthapuram is one of the longest in India, spanning over 2800 km. This route takes you from the desert of Rajasthan to the southern tip of the country. By train, this journey can take over 50 hours. Most travelers prefer a flight from Bikaner or Jaipur to Thiruvananthapuram to save time.
Total Distance: 2800 km by road, 2300 km straight-line air distance.
This is a very long journey; consider breaking it in Mumbai.
October to March for pleasant weather.