A good introduction and conclusion, accurate English, impressive expression, a balanced mix of facts and fulfilling the requirement of the question or any outline given is important while one attempts such subjective papers. Aspirants of these jobs must concentrate on Current Affairs and English which can be improved through English newspapers and related websites. These are few of the things that should not be compromised in my opinion. Current Affairs and English, both will give you an edge.

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We say unto it:Be. And it is (Quran 16:40)