Hi Aspirant

There are bachelor courses which are offered by the colleges are:

Bachelor of Statistics Hons.

Bachelor of Mathematics Hons.

These courses can be done after your 12th .To know more about college visit the link given below:

https://www.careers360.com/university/indian-statistical-institute-kolkata

https://www.careers360.com/compare-colleges?college=49414-49414-course=60964-60965-compareresult

Hope this helps.

All the best