See both the courses are essentially the same as per the subject is concerned. But there are some fine differences. In BA you have to choose Generic Elective for your First and 2nd year which will essentially be from any subject else. But in BJMC you will have to choose discipline specific papers which will make your foundations regarding your subject stronger. Except from that there are more seats in BA than BJMC. Apart from that the perspective you will learn in the subject is similar.

To know more about Mass communication visit the link below:

https://www.careers360.com/courses/mass-communication-course

I hope my answer helps. All the very best for your future endeavors!