The journey from Thenmala to Patna covers about 2600 km. You will need to reach Kollam Junction to catch a train heading towards North India. Patna, the capital of Bihar, is one of the oldest continuously inhabited places in the world. The route takes you across the length of the country.
Total Distance: Driving distance 2700 km, Air distance 2200 km.
Check for direct trains from Kerala to Patna.
October to March for pleasant weather.