Depends more on your interest since both the courses are decent enough from the Symbiosis Institute. Since both the fields are pretty different from each other.

Bachelor in Computer Application ( BCA ) is related to IT (Information Technology) field. Its a 3 years undergraduate course divided into 6 semesters.

BBA or Bachelor of Business Administration is a 3-year professional undergraduate course in Business Management. It is considered an ideal degree for students who want to pursue managerial roles and leadership positions in the future.

Refer to the sites below for more detailed information..

https://www.careers360.com/colleges/symbiosis-institute-of-computer-studies-and-research-pune/bca-course https://www.careers360.com/colleges/symbiosis-centre-for-management-studies-pune/bba-course Best wishes. Thankyou.