Hi
The Best four subjects need to be include the following:-
1. One language
2. One subject in which admission is sought- A candidate needs to include the subjects in best of  4, in for the Honors programme in which admission is being sought, otherwise a disadvantage of 2.5% will be applicable to the calculates Best of four Percentage.

Yes, if you have to take admission in DU your 2.5% will be deducted in physical education.
For more rules regarding DU admission just go through this link:-
https://university.careers360.com/articles/delhi-university-admissions-how-calculate-best-of-four-marks

Dear student better for count your best 4 subject you take highest mark subject because your admission possibility chances high as compare to other subject I suggest you.
Thank you..

DU Delhi

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