Hi, in order to pusue B.Com Honors from Delhi University you have you include the subjects according to rules set by the authority:

• one compulsory language
• one subject in which you wish to take admission
• the rest two subjects should be mention in LIST A and LIST B provided by DU in the Bulletin of Information
• Inclusion of any subject other than mentioned above from List B in the combination of best three will lead to a deduction of 1% per subject on the aggregate, with a maximum net deduction of 2%.
• Inclusion of any subject other than List B in the combination of the best three will lead to a deduction of 2.5% per subject on the aggregate of the Best Four.

subjects you need to include:

• English/Hindi
• Mathematics
• Accountancy
• Economics
• Business Studies/ Commerce

To know the eligibility/best of four combination for any other subject refer to the link: https://university.careers360.com/articles/du-eligibility-criteria

Good luck