According to CBSE 70 per cent of the CBSE board exam 2021-2022 Class XII syllabus will be from the CBSE Board Exam 2019, 20 percent of the CBSE board exam 2021-2022 Class 12 syllabus is new and 30 percent of CBSE Board Exam 2021-2022 Class 12 syllabus has been removed.