To reach Hyderabad from Sonapur, you must first reach Guwahati. The train journey covers approximately 2200 km. Trains like the Guwahati-Secunderabad Express connect the two cities. The journey takes about 38 hours by rail.
Total Distance: 2200 km by road, 1800 km air distance.
Carry plenty of reading material for the long journey.
October to March for pleasant weather.