Oh... Yes you can opt for science field in your 10+2 with PCB and Mathematics subjects as well and if you so like mathematics then yes there are students who do graduation in the field of mathematics after completing your 10+2 from science field. BSC Mathematics is a 3 year undergraduate program.

Refer to the site below to know more about the same..

https://university.careers360.com/colleges/list-of-bsc(hons)-in-mathematics-universities-in-india

This is a link to some of the finest universities which provide BSC HONS graduation degree in the field of Mathematics.

Best wishes. Thank you.

hi,

see most of the education board of india has mix of science and arts subjects in 10th course, so all of the candidates need to learn mathematics as a subject in 10th standard, now most of the 12th course curriculum for commerce stream has option to take mathematics, colleges like delhi university bba course, you need to have mathematics as a subject in 10+2 course, so It will be an wise decision to take maths in 12th course. try to bring good score in 10th course.