The distance from Gopalganj to Dehradun is approximately 950 kilometers. The most practical way to travel is by long-distance train from Siwan or Chhapra to Dehradun (DDN). The journey takes between 18 to 22 hours. Alternatively, you can travel by road via NH 34, which is a long but scenic drive. Dehradun is the capital of Uttarakhand and a major gateway to the Himalayas.
Total Distance: 950 km by road, 800 km straight-line.
Book well in advance as these trains are always in high demand.
The road is well-maintained but expect heavy traffic.
October to March for pleasant weather.