Hey,
Bachelor of Arts (BA) Economics Hons is a full time three years undergraduate course offered by Patna University, Patna and Subject offer for this Course:- English/ History/ Sociology/ Political Science / Geography/ Psychology/ Mathematics/ Commerce/ Business Administration(BBA)/ Advertising and Marketing Management.
Patna Women's College is one of the best colleges of Patna and BA Economics is really good over there given the good faculty.
Hope this helps.
Good luck.