Hello aspirant

According to 2020 Delhi University cutoffs for bac mathematics, almost all colleges hav a cutoff above 90 % . Considering your plustwo percent to be 79.25, you have very less chances to get admission on merit based on delhi university.

Do not lose your hope, there are many good universities out there.

You can use this link to check the cutoffs for various colleges in DU for bsc mathematics :

https://university.careers360.com/articles/du-first-cutoff/amp

Hope this information is clear

Thanks