UPSC Syllabus should be understood in detail. Simply knowing subject will not serve the purpose. One should understand the depth of topic prescribed in each subject.
Detail analysis of each subject is provided as below. For sake of clarity I have divided the whole law optional syllabus into 7 major parts. In each part what type of questions are asked and what subtopic have to be studied have been given in detail. Kindly click of each subpart for detail analysis.