Dear Vineet,  The question paper will consist of the questions based on English Language Comprehension, Analytical Abilities, Legal Awareness & Aptitude, General Knowledge and to name a few. Aspirants will be awarded four marks for every correct answer, while one mark will be deducted for every wrong answer. No marks will be neither awarded nor deducted for unattempted question. There will be 100 questions of objective nature in the law examination. Under Analytical abilities Analytical Reasoning, Logical Reasoning, Number Systems, Average, Profit Loss, Percentage, Areas Mensuration, Time Speed and Distance, People Work and Time, Probability, Statistics Graphs, Venn Diagrams, Blood Relations, Sets, Missing Numbers, Series are covered. In English, Unseen passages, Grammar, Comprehension, Proverbs, Antonyms, Synonyms, One word substitute, Sentence and Word Correction, Spell checks, Cloze Passages are covered. Under GK, Static General Knowledge, Current Affairs are covered. In Legsl Awareness section, Legal propositions, Conclusions, Legal Maxims, Bare Acts of the Indian Constitution are covered. So I would suggest you to pick the subject you are well versed with and only attempt those questiins whose answers you are pretty sure of so that you wouldnt face negative marking. Leave those questions unanswered whose answers you dont know. 

DU LLB exam has a strong focus on Legal Aptitude and Indian Polity, especially as it relates to the legal aspects.It is an entrance exam for admission in one of India's most premier 3-year LLB schools.

Here are some of the preparation tips to prepare for DULLB entrance exam.

Plan a strategy: It is a must to schedule a study-plan. An intensive preparation strategy is needed which includes as many as 6 hours of regular studies to crack DU LLB entrance exam. you must study at least two subjects every day and must practice at least one vocabulary / English and one reasoning exercise daily.

There is no defined syllabus for GK and current affairs in this exam. You can focus on important awards each year  sports, science, literature and arts, Physical geography, science and environment, Important happenings in the area of the Indian Constitution or Justice system

Mocks form an important part of the exam preparation. Look for a good online mock test series, and aim to write at least 6-8 mock tests before the actual exam. Reproduce the exam conditions as much as possible.

You can check the exam pattern & syllabus with the given below link.

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

Good Luck!