The journey from Robertsganj to Thiruvananthapuram covers about 2500 km. You can take a train from Sonbhadra to a major hub like Chennai and then a connecting train to Thiruvananthapuram. Alternatively, you can travel to Varanasi and take a flight. It is a long journey but offers a beautiful transition to the tropical climate of Kerala.
Total Distance: Driving distance 2500 km, straight-line air distance 2100 km.
Book your connecting train well in advance.
October to March for pleasant weather.