B.A

what else can be pursued?

Go for IP University.

1. The basic eligibility criterion for pursuing B.A. (Music) degree is qualifying 10+2 or equivalent examination in any stream from a recognised board of the country.
2. The student should have passed 10+2 with Music as an elective subject.
3. Students who have passed the 10+2 exam without having music as a subject can also be eligible for B.A. (Hons.) Music degree after qualifying through an audition/aptitude test.

Go what you love if your passion is your job and study it is best combination

First of all after you complete your B.A you are eligible for any masters , but in your case PGDIBO is not a masters degree it is equivalent degree , But you check with your college , you should complete your B.A.
you can check with your college from where you are doing PGDIBO

There are a university in dehradun called university of petroleum and energy studies
which gives coaching for civils with BA Course