Freelancing Legallity Query

Hi all!

I have been offered a contract through letsdeel.com website which takes legality very seriously. They are telling me that to register as a Freelancer I have to open a private firm with propietarship in Nepal as per the rules. Do you know if this is true?

The rules in Nepal for Freelancing is very distorted and messy. Can't find anything on the internet about it.