if i have taken admmision in BA regular can i do BSC distant courses?
Yeah! you can do a distant course along with a regular course. But while taking admission in any course I would recommend you to go with a feasible course. You are doing BA and BSc then you should be clear that the courses you are pursuing will help to shape your career ahead. There are no meaning of investing time without any outcome in future.
I hope you got my point. All the very best for your future endeavors!