Originally Posted by SDM

RE-COUNTING OF MARKS
Answer Books in all subjects of examination are confidential
documents and cannot, therefore, be permitted to be seen by
candidates or their representatives nor re-examination of answer
books/scripts is allowed under any circumstances. A candidate
desirous of getting his/her marks, awarded by the examiners, recounted
may submit his/her request for the purpose, within one
month from the date of issue of result card/marks sheet along with a
Treasury Challan of Rs. 200/- per paper as fee for re-counting of
marks only. Thereafter, no such request will be entertained.

It means if u intend to get 12 papers recounted,deposit 2400 PKR in the bank and send an Application requesting so with the treasury challan to Secretary FPSC.But kindly wait for your DMS to decide how many papers you want be recounted.