what I do after 12th I have Arts with economic main?
Being from Arts, after 12th, you may aspire BA in any relevant subject of interest, followed by Job,Higher Education, Research & Academia, MBA in HR, etc or pursuing Government Services, UPSC CSE, RRB Railways, PCS,SSC CGL,Indian Economic Services in Future.
If youre interested in Economics, you may perhaps pursue BA in Economics from some of the best universities and colleges in India. For more information do follow the link below
https://university.careers360.com/colleges/list-of-ba-in-economics-degree-colleges-in-india