Both the courses are quite good for the future and career growth. Now if you have Mathematics in 10+2 and if you are able to getting BSc Economics then go for it because, the Mathematical treatment in BSc Economics curriculum in most of the universities are more compared to that of BA Economics. Apart from that if in future, you want to go for the MSc in Big Data Analytics, then some institute don't take BA Economics student instead prefer BSc Economics. So if you have option then go for BSc Economics, else you can go for the course of BA Economics. At the end of the day, you will not face any problem regarding the BA or BSc course, what will matter the most will be about the subject.

For more information regarding Economics as a career consider the link below:

https://www.careers360.com/courses/economics-course

I hope this helps. Wish you a great day!