It is unlikely that you can directly appear for the CBSE Class 12th board exams in 2027 as a regular candidate if you failed in 2025 and do not appear in 2026. Here's why:

As a student who has failed the Class 12th board exams in 2025, you have options for reappearing. The Central Board of Secondary Education (CBSE) provides opportunities for students who haven't passed.

One option is to appear for the compartment or supplementary exams that are usually held shortly after the declaration of the main results in the same year (2025). These exams are for students who have failed in only one or two subjects, allowing them to clear these subjects without having to repeat the entire year.

If you miss the compartment exams or fail in more than two subjects, the standard procedure is to reappear in the following year's board exams (2026) . You can do this either as a private candidate or, by re-enrolling in a school, as a regular candidate .

The CBSE generally does not allow students to skip a year after failing and then reappear directly as a regular candidate two years later (in 2027) without any formal connection to a school for that academic year. Regular candidates are those who are actively enrolled in a school and attend classes for the academic session leading up to the board exams. If you don't enroll in a school for the 2026-27 session, you would most likely have to appear as a private candidate if you wish to take the exams in 2027.

To get the most accurate information regarding your specific situation, it is highly recommended that you contact the CBSE directly or consult with the authorities at your school. They will be able to provide you with the official rules and guidelines regarding reappearing for the Class 12th board exams after failing. They can guide you on the correct procedure and the possibilities available to you based on your circumstances.