To keep a track of the number of visitors entering Mussoorie, the Uttarakhand Government has created an online registration process with effect from August 1, 2025.  Tourists planning to visit Mussoorie are advised to register online at https://registrationandtouristcare.uk.gov.in/touristregistrationmussoorie/.  If you arrive without registering online, you can still register with the help of your accommodation provider.