hey,

i hope you are well

while calculating best four marks for B.Sc electronics hons you need to include  english ,physics ,mathematics and chemistry/computer science , candidate are required to secure a minimum aggregate of 60 percent marks in physics , mathematics and chemistry/computer science and candidate must have secured a minimum aggregate of 50 percent marks in english.

for more information kindly go through the link mentioned below

https://university.careers360.com/articles/du-bsc-eligibility-criteria

good luck!