Political Science has been a good scoring subject. However, remember you would be tested among the aspirants with relevant subject's background, subsequently increasing the competition and expectations of the paper checker. In political science you cannot throw your own opinions bases on stereotypes.
You must be very sharp at various models and theories and must be able to give logical solution to every question, at length
Scoring Subjects for 2015 are as under:
1. All history subjects
2. Sociology (but NOT Journalism)
3. Punjabi and
Pushto
5. International Law
6. Public Administration (but
NOT Business Administration)
7. Geography (Only if you have studied it before, and if you can draw good diagrams)
8. Psychology (Only if you can draw good diagrams, place plenty of headings and if your answers have some graphical or/and tabular or/and symbolic representation)
Good Luck