Stammering is not a disability. I am insulin dependent diabetic with various complications. I also have many other complications due to this problem. Social security Pakistan has issued me a disability certificate which is the non challenge able according to law as they issue after verification. They conduct series of tests and issue it to only deserving person but sadly FPSC is not accepting it.

They are not even accepting certificates of people with missing fingers etc
Only blind, deaf and majorly physically disable persons are accepted as disable person by FPSC.

Moreover, in their letter they have clearly mentioned that there are no reserve seats for disable.But it can help out in group preference and age relaxation matter.