2👍
It is as simple as:
WSGIScriptAlias /djangoproject1 /some/path1/django.wsgi
WSGIScriptAlias /djangoproject2 /some/path2/django.wsgi
Mounting at sub URL is mentioned in documentation at:
http://code.google.com/p/modwsgi/wiki/ConfigurationGuidelines#The_WSGIScriptAlias_Directive
Source:stackexchange.com