Are you asking for BHU UET Entrance Exam? There is no prescribed syllabus for BHU UET so it is advisable to revise your 11th-12th syllabus properly and once it is done, start doing previous year papers as these will be helping you to know difficulty level of questions along with paper pattern.

You can also prefer the previous year papers with the given below link.

http://bhuonline.in/old-qus-paper-entr.html

Good Luck!