Selection of optional subjects is the key factor in all competitive exams, candidates must ensure proper selection, and avoid subjects which are alien to them, 200 marks subjects are better to opt, rather than going for many 100 marks subjects, I attempted CSS three times with Urdu, Journalism, Sociology and Business admin, only business admin. Was related to my academics, this wrong selection ruined my attempts, personally I don't have any experience of the PMS scenario, thus it would be better to have subject suggestions from respectd members, this will help all the aspirants to make fruitful selection.