The journey from Bikaner to Thrissur spans over 2500 km, connecting the desert of Rajasthan to the cultural capital of Kerala. By train, this journey can take over 46 hours. Most travelers prefer a flight from Bikaner or Jaipur to Kochi, then a train or taxi to Thrissur.
Total Distance: 2500 km by road, 2000 km straight-line air distance.
This is a very long journey; consider breaking it in Mumbai.
October to March for pleasant weather.