The journey from Koderma to Purnia covers approximately 400 kilometers. The most reliable way to travel is by train, connecting Koderma Junction to Purnia Junction or nearby Katihar Junction. The journey takes about 10 to 12 hours. Purnia is a major commercial center in the Seemanchal region of Bihar. Road travel is possible via NH 31, but it is a long drive.
Total Distance: 400 km by road, 330 km straight-line.
Katihar is a major hub; take a taxi or bus from there to Purnia.
November to February for pleasant weather.