The topics of BHU LLB syllabus are General Awareness & Current Affairs, Common Legal Knowledge, Aptitude and Mental Ability. In detail about the topic you can check below.

General Awareness & Current Affairs
    Events that were popular
    Economics
    History
    Geography
    General Science
    Politics Developments in the areas of Economics, Science, Sports, Places, Persons, etc

Common Legal Knowledge

    Indian Constitution
    Indian Penal Code
    Intellectual Property Rights
    Family Law
    Indian Contract Act
    Labour Laws, etc.
Aptitude & Mental Ability    Modern Mathematics
    Arithmetic
    Mensuration
    Commercial Maths

Good Luck!