Hey !! 

Yes St.Xaviers college , Bangalore is among the top colleges of India for BBA. You can definitely go for it. This college provides you good placement opportunities in very high rated firms. The college is great in terms of infrastructure also. The classrooms of St.Xaviers Bangalore are completely air conditioned. It has a huge library and well experienced staff, which makes the quality of education superb in this college. You can definitely go for this college. 

All the best!!