Many people/travelers consider Haridwar as the best city to start Char Dham Yatra, and it’s true if you want to spend 1 day for local Haridwar & Rishikesh sightseeing. But if you are focused on only visiting the Char Dham Temples, then Dehradun is the excellent choice to start the Yatra. As it has:
Airport & good rail & road connectivity
So plan to start your Char Dham Yatra from Dehradun and also follow some basic instructions like:
Basic Instruction for Yatra
Registration of every traveler is now compulsory.
It’s advisable to carry cold medicine and warm clothes.
Be prepared to encounter cold weather and snow at Kedarnath and Badrinath.
There is a 5 km trek at Yamunotri Dham and an 18 km trek at Kedarnath Dham.