dear student

You have to go through the syllabus of B.Ed which quite vast and you can attempt the test after fulfilling the necessary criteria. 

The syllabus will be of graduation level for subjects - Mathematics, Physical Sciences (Physics and Chemistry), Biological Sciences (Botany and Zoology), Social Studies (Geography, History, Civics and Economics).

Every state exam has their own set of criteria. Many mock tests and online tests are available for different types of exams for aspiring teachers.

Hope this helps

All the best!!!