CBSE issues subject-wise mark split for 2027 Class 10 and 12 board exams

The Central Board of Secondary Education (CBSE) has released the complete format for the distribution of marks in every subject for the Class 10 and Class 12 board examinations of the 2026-27 academic session. The board gave the information in a circular issued on November 5, 2026. It sets out the marks for theory, practical, project and internal assessment for different subjects.

The aim of the format is to help schools avoid errors. According to the board, schools often make mistakes while uploading marks for practicals, projects and internal assessment. This risks errors in students' records. The new instructions will keep the evaluation process in order and stop such mistakes.

Dates for internal assessment have also been fixed. For schools in winter-bound areas, it will run from November 11 to December 19, 2026. Regular schools will carry out the work from January 1 to February 13, 2027. The board has asked all schools to complete the necessary arrangements within the stipulated time.

In the main Class 10 subjects of Hindi, English, Mathematics, Science and Social Science, 80 marks will be for the theory examination and 20 marks for internal assessment. In subjects that have practicals and projects, the division of marks is different.

For Class 12 too, the board has given a subject-wise evaluation format. In English Core, Hindi Core and several language subjects, 80 marks will be for theory and 20 for internal assessment. In Physics, Chemistry and Biology, 70 marks will be for theory and 30 for practicals. The same split will apply to Geography and Psychology.

In History and Political Science, 80 marks have been fixed for theory and 20 for project work. Business Studies and Accountancy will also follow the 80:20 pattern. In Computer Science and Informatics Practices, 70 marks will be for theory and 30 for practicals.

CBSE has made it clear that the maximum marks in every subject will be 100. Schools have been told to check the prescribed mark distribution for the subject concerned before conducting practicals, projects and internal assessment. This will maintain transparency and accuracy in the evaluation of the 2027 board examinations.