I would suggest you to prepare your time table your self as per your convenience as you know better about your schedule. In order to prepare for BHU LLB exam the tips you can follow are:

    The main section is Legal Aptitude and Indian Politics so ace these topics.
    Go through previous year papers.
    Refer to 'The Hindus' newspaper for updates and current affairs. It will also benefit your English portion in the paper.
    The legal part is full of questions based on principles and facts which can be practiced from previous years question papers.
    For static GS lucent would sufficent and even Arihant publications.

You have enough time to prepare and a good chance to give time to each section.
Join mock test and anlayse your weak and strong areas which will also help you in your preparation.

The topics of BHU LLB syllabus are General Awareness & Current Affairs, Common Legal Knowledge, Aptitude and Mental Ability. You can check the further information with the given below link.

https://law.careers360.com/articles/bhu-llb-exam-pattern

Good Luck!