Hi there,
Hope you are doing well.
After 12th in Arts, there are a lot of subjects that you can pursue BA in, for example:-

• BA Music
• BA Multimedia
• BA Humanities and Social Sciences
  
• BA Geography
• BA History
• BA Political Science
• BA Business Economics
• BA English
• BA Language courses like Persian, Italian, Punjabi, Sanskrit
• BA Psychology
• BA Sociology
• BA Philosophy
  
  Hope it would help.
  Thank You.