Hmm your CA paper is ruined but you might pass in GK. And you may get pass marks in Islamiat too. In sociology one would hardly fail. Don't think about low marks, you can cover the gap in in the interview...

You are still in the game so do attempt all the papers. Complete the task you started, don't be a quitter!!!

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He that increaseth knowledge increaseth sorrow (Ecclesiastes 1:18)