The journey from Korba to Dehradun covers about 1300 km. The most practical way is by train, typically requiring a change at a major junction like New Delhi or Hazrat Nizamuddin. You will travel from the central plains to the foothills of the Himalayas. Dehradun is famous for its schools and pleasant climate.
Total Distance: 1300 km by road, 1100 km air distance.
Take the Shatabdi from New Delhi for a fast connection.
October to March for pleasant weather.