Hey there

You have got good rank and admission for different courses have different cutoffs but as your rank is good I can say you will be getting a seat in Bhu. I can say about hostels that you may get hostel also as in bhu hostels are alloted on the basis of rank based on course strength and competition.

Check about BHU

https://www.google.com/url?sa=t&source=web&rct=j&url=https://university.careers360.com/articles/bhu-uet-cut-off/amp&ved=2ahUKEwiu2LmB2JHjAhVFs48KHU9XCTAQFjAAegQIARAB&usg=AOvVaw1RMUsy_2FX5LSZdBpbcioq

Good luck