@Khattak

Khattak sb....dear it is really traumatic for u..but i m sure that matter may be resolved .If FPSC have given u time(normally 15 days) for appeal then file an appeal to the Secretary FPSC .However,if they have taken the decision and have rejected your candidature without allowing u an hearing then go to the court.It is routine matter for FPSC and courts usually give relief to the candidates.First of all gather your poise and u ll get relief Insha Allah.
In 2006 I had submitted my application form for A.D IB but later on received FPSC latter that i had submitted forms without challan.I retrieved a copy of chalan from District Treasury and filed appeal to FPSC and my candidature was restored .Likeswise u may give the proof that u had submitted the application forms and this is injustice.I am sure a prompt and calculated action might lead to restoration of your candidature..

Best wishes for U...