CBSE Supplementary Exam 2023: The Central Board of Secondary Education (CBSE) has issued a notification stating that the 10th and 12th supplementary (compartment) examinations will be held on July 17, 2023. The CBSE has also provided guidelines in this regard. The CBSE will commence the application process for the supplementary examination on June 1. Candidates who have appeared in the CBSE Class 10th & 12th Board Exam and are not satisfied with their scores or have failed in one or two subjects can apply.