Hey

Since home science is included in elective subjects therefore you can add it in your best of four percentage.

This eligibility criteria can differ for another courses of science. Since for science subjects your science score percentage is taken into consideration that is PCB/PCM percentage. In this case you can't add another subjects for calculating your eligibility for a specific course.

So as per your choice of course, check your eligibility criteria.

To know in detail about calculation of best of four percentage and other details, kindly check the link below -

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

Thanks

If you want to make your career in homescience

Chemistry is very important subject for you

And you can't remove chemistry from your best 4 subjects ..

In place of chemistry, You can remove any other subject which is not necessary for your career in home science..But chemistry, Physics and biology are the very important subjects for your career..

Hope this information is beneficial for you