Yes you are eligible for pursuing BBA course after completing your 12th class in arts stream. This is because of the following criteria which state that any candidate who has completed his or her 12th class in Arts/ Humanities or Science is considered eligible for pursuing BBA course at undergraduate level.  There are various specialisations which you can choose under BBA. Some of the popular specialisations are mentioned below:

1. BBA in Finance
2. BBA in Marketing
3. BBA in operations
4. BBA in human resources
5. BBA in accounting
6. BBA in supply chain Management

Read more:

https://www.google.com/url?sa=t&source=web&rct=j&url=https://www.careers360.com/courses/bba-bachelor-of-business-administration/amp&ved=2ahUKEwiv0-_7xeD2AhUkQPUHHZCNDF4QFnoECAYQAQ&usg=AOvVaw210B3Dsj6oaMwuCtQSqNC_