Hii Ankit!
There are a lot of career options in Arts stream after you complete your graduation with it. The career options include MBA, BBA, B.Ed, LLB, BSW, bachelor of library science, PGDM etc., But, id you want jobs specifically related to Hindi subject, you can become a teacher after doing b.ed, you can also become a professor or lecturer attaining higher degrees.
Hope this helps.
Good luck!