3. Submit your application and supporting documents
To find out where to submit your application, please select the country you will be applying from (you can choose your country of nationality or the country where you have been legally admitted):
It depends on the visa post...some give you the option of mailing or going to a VAC. If the visa post mandates you to go to a VAC in particular if you need biometrics taken then you follow the rules or your 'direct to the visa post mailed' application will get bounced.