The journey from Katras to Bettiah covers about 550 km. You will need to travel via Dhanbad Junction to catch a train towards North Bihar. The route takes you through the heart of the state, eventually reaching the Terai region near the Nepal border. It is a long journey, so plan for an overnight trip.
Total Distance: Driving distance is 550 km; straight-line air distance is 400 km.
Connecting trains are common; check for layover times.
October to March for pleasant weather.