Patna, the capital of Bihar, is a historic city on the banks of the Ganges. To reach Patna from K.Perumallapuram, you must travel to Rajahmundry and take a train towards the northern region. The journey covers approximately 1400 km. Expect a travel time of 26 to 30 hours by train.
Total Distance: 1400 km by road, 1150 km straight-line air distance.
You will likely need to change trains at a major junction.
October to March for pleasant weather.