Oh that's mind-blowing. Someone at the same shop quoted 4,000 for a Hoya polarizing filter, was not sure if it was CPL and I had already ordered it online, so I bought two Hoya UV @1100 rupees each other, because one was required by one of our office photographer. I think the salesman must be knew and did not know the stuff. Sometime they have price stickers, sometimes none.
The best course is to buy online, ship the stuff to someone's address who is coming to Pakistan.