Dear Kamya, now CLAT is for Candidates after their 12th and so the exam tests your basic Legal aptitude. Now there are approximately 80 articles that are important. But for CLAT, you might not need to learn all of them because you are taking an entrance exam to study the legal aspects of the Indian Constitution. This section tests your Legal reasoning skills and not Legal knowledge skills. So try reading articles 12-18. This will give you a general idea. And you need to remember few points while attempting the Legal Aptitude section. Remember that this is a tie breaking section and so apply legal reasoning and not moral considerations. Choose the closest correct answer. Read the news paper daily and practise as many sample papers as possible to have a grip over this section.