Fpsc is only a governmental organization that always demands creativity. In your first attempt, you could not read bookish material thoroughly, hence, you were creative in answer attempting by providing real-life examples. On the other hand, in your recent attempt at competitive examination, as you said, you prepared from different sources well. You produced that material in your paper. It might be possible your ideas or example could have plagiarised. You cited examples from the book that the examiner read a hundred times. Then how would they give you good marks for plagiarised examples? Therefore, you must be creative in preparation and in the paper.

As far as books are concerned, you should prepare from Kottak Anthropology and Haviland because both books are recommended by FPSC. Both books are well written and full of examples. Hence you must consult these two books. you can download these from torrent sites.

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“Never leave that till tomorrow which you can do today.”
Benjamin Franklin