I cannot comment on the correct date for this bunter but I will say that the norm for the Pakistani Ordnance Factory (POF) is to have the initials POF followed by the date at the top, and the caliber designation at the bottom, all oriented to be read without rotating the cartridge (not always what we think of as a caliber - .303 for example has a “7” to indicate the Mark 7 loading. It doesn’t say “.303”).
If that rule was followed, your bunter would be from 2006, but I can’t say if the rule was followed, not knowing much about NATO ammo. I have not seen, for example, other specimens of POF 7.62 x 51 where the date cannot be misread. I simply don’t pay attention to 308s.
When I was collecting .303 I had several Pakistani rounds in the collection, and I currently have five different Pakistani 9mm headstamps, and all follow the pattern I described above as “the norm.”
Will be interesting to see if the date is actually 1990.