Hello student to score good marks in DU LLB entrance examination you need to first know the exam pattern and syllabus.

DU llb examination is consist of 5 sections which is as mentioned below -

1. Legal Aptitude + Constitution
2. General Knowledge and Current Affairs
3. English Including Comprehension
4. Elementary arithmetic
5. Logical Reasoning

Some of the best tips to score good marks in DU LLB entrance examination are as mentioned below -

For GK you need to do the current affairs with the help of quality news paper usually student start reading news paper 3-4 months before examination and then they're unable to grasp things properly.. So you Can start reading news paper from now so that you can develop a good habit and also habitual.

For Legal Aptitude and constitution you need to to practice and  be familiar with IPC and CrPc

Some of the best books are as mentioned below -

Universal guide for DULLB

For more details refer to the link the link mentioned below - https://www.google.com/amp/s/law.careers360.com/articles/how-prepare-for-du-llb/amp

Feel free to comment if you've any doubt

Good luck