The journey from Chadayamangalam to Guwahati is a massive 3200 km trek across India. You must reach Kollam Junction for rail connectivity. This route takes you from the southern tip of India to the gateway of the Northeast. Given the extreme distance, flying is highly recommended for time efficiency. Guwahati is a major city on the banks of the Brahmaputra River.
Total Distance: 3200 km by road, 2700 km air distance.
This is one of the longest train journeys in India; plan accordingly.
October to April for pleasant weather.