Hello dear student,

if you want to take admission in Delhi University than their student you must calculate for the best four subjects and not for the best three subjects. you must add one language subject while calculating the best 4 subjects to get admission into Delhi University for BSC physics honours. While here I am attaching a link which will be helpful for you in calculating the best four according to the guidelines of Delhi University. And also you can check for the other parameters.

https://www.google.com/amp/s/university.careers360.com/articles/delhi-university-admissions-how-calculate-best-of-four-marks/amp

Thank you