Good! Thanks dear!
Actually, I have heard many a time that if you mention CSS/PMS etc., the panel assume that the interviewee won't remain in the very department which he is going to join after the interview. Obviously, many CSS/PMS aspirants have a edge in studies and general knowledge as compared to their fellows. That's why, I was confused whether to mention it or not.

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"But screw your courage to the sticking place,
And we'll not fail." _Shakespeare, 'Macbeth')