Hi Rishita,
It you are not so strong in accountancy, you should choose BBA as B.Com (//B.Com) will have accountancy as a subject. B.Com (//B.Com) is a more theory oriented course that can help you in getting a job.
Refer here for more info about B.Com (//B.Com) - B.Com - Full Form, Courses, Admission, Eligibility, Exams, Syllabus, Scope & Career Growth (careers360.com)
Refer here for more info about BBA - BBA - Courses, Full Form, Admissions, Eligibility, Syllabus, Subjects, Scope & Career Growth (careers360.com)
Feel free to ask doubts in the Comment Section.
I hope this information helps you.
Good Luck!
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