Hello aspirant,

According to your percentage, yes there are chances for you to get admission in bsc hons mathematics. The cut offs for these top colleges goes upto 98-97%.

You can check last year cut offs in this link.

https://www.google.com/amp/s/university.careers360.com/articles/du-cutoff/amp

Also, if your family income is less than INR 8 Lakh per year then you can apply for EWS certificate because that surely helps in getting admission.

Hope it helps.