Go for that language in which you studied Islamiat in your school. There is no need of heroics at this stage. It is a grand myth that those who opt Islamiat in Eng score better than those who go with Urdu. And Islamiat in English benefits in interview? NEVER.

The panel is mature enough to be concerned with much more important things than being impressed by Islamiat in English.

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"And how can man die better than facing fearful odds, for the ashes of his fathers, and the temples of his Gods?"