First of all , there is no fixed pattern of questions( like this year there were about 50 questions of maths out of 120 which nobody had expected!) in BHU LLB entrance. Like CLAT, questions are quite unpredictable every year! At the same time ,it doesn't necessarily make the paper tough or easy!

• Basically you have to be thorough with static GK part along with GS because 50% questions are surely covered by them. You can refer to Arihant publication books,Lucent,etc. for the same.
• Secondly, have a good practice of maths upto class 10th. By this , I mean , not only learn to solve the problems but to solve them as quick as possible because if you are good at maths you can easily score bonus points as it is the most feared of sections among aspirants.
• Further the extra 30 questions relating to language are based on simple grammar and vocabulary which you can easily answer if you have command over any of the two-English or Hindi.
• The legal part is full of questions based on principles and facts which can be practiced from previous years question papers.
• There are also quite a number of questions relating to constitution, especially regarding the powers of judiciary, specifically supreme court. So you must go through the articles related to the powers of SC.

This much shall sufficient for qualifying the entrance. Do practice the previous years’ questions also! Good luck. Hope it helps :)