The journey from Mahabalipuram to Patna is a long-distance trip of about 2100 km. You must reach Chennai and take a direct train to Patna Junction. This is a major route on the East Central Railway line. Flight is the most recommended mode of transport due to the distance.
Total Distance: 2100 km by road, 1800 km air distance.
The Sangha Mitra Express is a direct train for this route.
October to March for pleasant weather.