It's not often that I find a place so repulsive that I wish to make a public statement regarding its unfitness for a visit. However, this is one of those times.
Dehradun was presumably a beautiful place. Ruskin Bond did quite like it. But today, it's probably a place best avoided unless you're immediately taking a bus out to Mussoorie. The city is filthy, dusty (my hands and hair are caked with dust), and full of rude autorickshaw drivers who are bandits (they're worse than any I've seen anywhere in India!). Oh, and there's absolutely nothing worth seeing.