To be frank, humen to filhaal CSS pass karne ke lalay pare hue hen aur aap abhi se ambassador ban'ne ki tension liye bethe hen? lol. Plzz take this lightly.

Ok coming to ur querry, I know a guy from D i khan (my hometown), he is currently posted in Russia. I don't know his designation but he has been in FSP for maybe 8 or 10 years now.

Based on my own little experience, if u do get to serve in FSP (or anyother department for that matter) you would have thousand more things to worry about. Being from KP would be least of ur worries. this is my understanding. Those who are already serving in fsp can guide u better.