The rules for CSS 2015 say :

"The Question Papers in Urdu or other Pakistani regional languages (Punjabi, Sindhi, Pushto and Balochi), Persian and Arabic should be answered in the respective languages unless otherwise directed in the question paper."


What I gather from this is that the entire Persian paper will be required to be solved in Persian in CSS 2015.

Seniors are requested to shed light on this.Thank you.