Pashai forms a large and messy dialect continuum, and any dialect/language division is prone to oversimplification. The present division of Pashai into north-west, south-west, north-east and south-east is based on Morgenstierne (1967), but there are numerous sub-divisions that complicate the picture.
Note on geographical location
Set on Dawlat Shah (Laghman province), the home of the main language consultant for these IE-CoR data.