CBSE Class 12 Marking Scheme 2026-27

The CBSE Class 12 Marking Scheme is one of the most critical documents a board exam student can study. It is the official CBSE document released alongside sample papers and post-examination answer keys that defines exactly how marks are to be awarded for every question in the board exam. Understanding the marking scheme is the difference between a student who writes correct content and one who scores full marks.

What Is the CBSE Class 12 Marking Scheme?

The CBSE marking scheme is an official document released by CBSE that contains:

• Model answers for each question in the sample or board paper

• Step-by-step marks breakup for long and numerical questions

• Value points that must be present in an answer to receive credit

• Acceptable alternatives and equivalent representations

• Instructions to examiners on how to handle partial answers and alternate methods

CBSE also releases a general instructions sheet with the marking scheme that tells examiners how to treat illegible handwriting, unlabelled diagrams, or unit errors in numericals.

CBSE Class 12 Marks Distribution 2026-27 — Subject-Wise

Theory vs Internal Assessment Marks Split

How Marks Are Awarded — Question Type Wise

CBSE Internal Assessment Marking Scheme 2026-27

For subjects with 20 marks of Internal Assessment (non-practical subjects):

For Science subjects with 30 marks Practical:

CBSE Grading System for Class 12 (2026-27)

CBSE uses a marks-based system for Class 12, and grades are mentioned on the mark sheet alongside absolute marks. The grading scale is:

Important Notes:

• The passing mark for CBSE Class 12 is 33% in theory and 33% in practicals separately.

• Grades are indicative on the mark sheet; universities primarily use absolute marks for admissions.

• CGPA is not used for Class 12; it applies to Class 10.

How CBSE Marking Scheme Works for Numericals

For Physics, Chemistry, and Maths, the marking scheme follows a step-marking approach:

Even if the final answer is wrong due to a calculation error, students can earn marks for the correct formula and approach. This is why showing all steps is mandatory.

How CBSE Marking Scheme Works for Diagrams

Diagrams carry dedicated marks in Biology, Physics, and Geography:

CBSE examiners are instructed to credit correctly labelled diagrams even if the written explanation is incomplete.

CBSE Marking Scheme — Common Misconceptions Cleared

Tips to Score Full Marks Using the CBSE Marking Scheme

1. Study the marking scheme of CBSE sample papers before the board exam. It teaches you the exact format of answers expected.

2. Write in points for long answers. Examiners look for value points, not lengthy prose.

3. Label all diagrams clearly. An unlabelled diagram typically gets 0 marks for the diagram component.

4. Use correct units in numericals. Missing or wrong units can cost you 1 mark per question.

5. Attempt all questions. There is no negative marking in CBSE board exams.

6. Write the question number clearly before each answer to avoid any confusion.

Understanding the marking scheme is something students often overlook, but those who treat it as a study resource — almost like a textbook of "how to write board answers" — tend to score significantly higher. Resources like Oswaal Books include CBSE marking scheme hints and examiner-style answer formatting within their solved papers, which helps students calibrate their writing style.

CBSE Class 12 Pass Criteria 2026-27

Other Recommended Books | Study Materials (All Subjects)