Hii Vamakshi,

Yes, maths is compulsory to be added while calculating best of four marks when applying  for admissions to  Bachelor's in economics honors from colleges which come under the University of delhi.

Please follow the link to calculate your Best of four marks- https://university.careers360.com/articles/delhi-university-admissions-how-calculate-best-of-four-marks For more information on eligibility/entrance test/admission
procedures you can visit this link - https://university.careers360.com/articles/du-eligibility-criteria

You can reach out to us for more help.
Hope it helps
Thanks