You should keep with you a Lucent book, a Arihant guide of bhu entrance,and if you focus on some times in current affairs Reading newspapers and online news will help you best, and you can go with that language in entrance exam which you particularly know we'll because that's what matters to increase your marks.. Talking about books now, you can go with Arihant Publications or Parvesh Pariksha BHU entrance guide.

Best wishes. Thank-you.