Can you give me a clear cut answer what should I pick after 12 th in bcom hons or bba Hons or bca what should I pick now which one is best

That's completely depends upon your skills and choice, you must check about each of these courses separately and then take the course of your choice. BBA Hons. - https://www.shiksha.com/bba/articles/difference-between-bba-general-bba-hons-blogId-13002 B.Com Hons. - https://www.shiksha.com/b-com-hono