Hmmm. Yeah, I looked at it too for Pakistan and it does say that in your country PCC is obtained from the town or city police. This is interesting. I'm not sure if the one you get from your local police covers your record for the whole of Pakistan or just that locality. Did you already get the email from CIC requesting that you get your medical/pay the RPRF/submit PCC? Do you know which VO is handling your application? If you are living in and applied from Pakistan I'm not sure but it might be London. (Are you still living in Pakistan or did you apply from the US? - If you applied form Canada or the US it would be the Ottawa CPC handling your application. Anyways, all that just to say that if you know what VO is handling your case, and especially if they already requested you to submit the PCC, I would call to verify with them where all they expect to get PCC certificates from. I wish I knew more about how it works from Pakistan to be able to help you more.
Best wishes!