Hey nabira,
As you have taken pcb (physics , chemistry and biology) in your 12th grade so you are not eligible for computer science engineering and also not for BSC computer science however it depends on colleges some of the college offering bsc computer science do ask mathematics as the mandatory subjects while some do not ,but still if you want to make your career in field of coding then you may opt BCA or BCA hons. This will lead you to work in an IT firm and after that if you want to do masters then you may go for mca ,they will help you to get the high paid job.
Good luck!