Hello,

You haven't specified your query is for which entrance test, nevertheless generally the entrance test of postgraduate level is based on the syllabus of graduation level studies only, based on this when it comes to yoga you need to be well acquainted with its history, origin, principles, developments, aims, objectives etc, this is just a general perception which I have tried to provide, you should visit the official website of the entrance test to know the detailed information for this, also if the entrance test includes other sections,