Dear Sudip
I want to inform you that for  mathematics honours in bsc then it must required isc in physics , chemistry and mathematics (pcm).

You can apply MATH IN BA . In that course only math are required with other 12th subject of arts.
Thanks

Hello.

Mathematics Eligibility. The basiceligibility criterion for pursuing B.Sc. (Hons.) Mathematics degree is qualifying 10+2 or equivalentexamination in Science stream with aminimum of 50% marks secured in Mathematics subject and/or in aggregate from a recognized board of the country.no one in this perfect in all . So you can choose maths in Bsc.

Hope this is helpful.

Good luck.