CBSE 10th, 12th Board Exams 2027: Subject-Wise Marks Distribution Explained

Last Updated:November 09, 2026, 12:48 IST

CBSE Board Exams 2027: As per the board, each subject carries a maximum of 100 marks, although the distribution varies depending on the subject and its assessment requirements.

CBSE board exam 2027 datesheet now available at cbse.gov.in. (AI Image)

The Central Board of Secondary Education (CBSE) has released the subject-wise marks distribution for the Class 10 and Class 12 board examinations 2027. The circular, issued on November 6, 2026, for the 2026-27 academic session, explains how marks will be divided between theory examinations, practical tests, project work and internal assessments.

As per the board’s notification, each subject carries a maximum of 100 marks, although the distribution varies depending on the subject and its assessment requirements.

CBSE Class 10 Board Exams 2027: Marks Distribution

For major Class 10 subjects, including Mathematics, Science, Social Science, English and Hindi, the assessment will carry 80 marks for the theory examination and 20 marks for internal assessment.

However, some subjects follow a different marking structure. Home Science carries 70 marks for theory and 30 marks for practical examinations. Computer Applications has 50 marks for theory and 50 marks for practical assessment.

Painting carries 30 marks for theory, 50 marks for practical examinations and 20 marks for internal assessment. Elements of Business has 70 marks for theory and 30 marks for project assessment.

CBSE Class 12 Board Exams 2027: Subject-Wise Marks Distribution

For Class 12, the marks distribution differs across academic and practical-based subjects.

Subjects such as English Core and Hindi Core carry 80 marks for theory examinations and 20 marks for internal assessment.

In Science, Physics, Chemistry and Biology carry 70 marks for theory and 30 marks for practical examinations. Geography and Psychology also follow a 70:30 theory-practical assessment structure.

History, Political Science, Business Studies and Accountancy carry 80 marks for theory examinations and 20 marks for project assessment. Computer Science and Informatics Practices have 70 marks for theory and 30 marks for practical examinations.

CBSE Board Exams 2027: What Details Does The Circular Include?

Apart from subject-wise marks allocation, the CBSE circular specifies the duration of theory examinations, subject codes, requirements for external examiners, availability of practical answer books and the type of answer books to be used during theory examinations.

Students and schools can check the complete subject-wise marks bifurcation in the official notification available on the CBSE website, cbse.gov.in.

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What is the marks distribution for CBSE Class 10 major subjects in 2027?

For major Class 10 subjects including Mathematics, Science, Social Science, English, and Hindi, the assessment consists of 80 marks for the theory examination and 20 marks for internal assessment.

How are marks divided for CBSE Class 12 Physics, Chemistry, and Biology exams?

For CBSE Class 12 Science subjects like Physics, Chemistry, and Biology, the assessment structure allocates 70 marks for theory examinations and 30 marks for practical tests.

What additional details are included in the CBSE 2027 marks distribution circular?

The circular specifies the duration of theory examinations, subject codes, requirements for external examiners, availability of practical answer books, and the type of answer books to be used.

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