The journey from Addanki to Guwahati is a long-distance trip of 2300 km. You should travel to Vijayawada and then take a direct train or a flight to Guwahati. This route takes you across the length of the Indian subcontinent, from the southern coast to the northeastern region. It is recommended to book well in advance due to high demand.
Total Distance: 2300 km by road, 1900 km air distance.
This is a very long journey; consider flying from Kolkata.
October to April for pleasant weather.