Traveling from Idukki to Dehradun is a massive journey spanning the length of India. You must first reach Aluva or Ernakulam by road from Idukki. From there, board a long-distance train to New Delhi or Hazrat Nizamuddin. Upon reaching Delhi, you can take the Shatabdi Express or a bus to reach Dehradun. The total distance is roughly 2800 km, taking about 55 to 60 hours. This route transitions from the tropical greenery of Kerala to the foothills of the Himalayas.
Total Distance: Driving distance 2850 km, straight-line air distance 2300 km.
Book the Shatabdi from Delhi to Dehradun for a comfortable final leg.
March to June or September to November for clear mountain views.