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CBSE Class 12 Syllabus 2027: Subject-wise Syllabus & Chapter-wise Weightage

• Updated on 31 Aug, 2026 by Tiyasa Khanra

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CBSE Class 12 syllabus 2027 will be published on the official CBSE website, cbseacademic.nic.in, under the Senior Secondary Curriculum for Classes XI-XII, covering all streams—Science, Commerce, and Humanities. The 12 CBSE syllabus 2027 will include subjects such as Physics, Chemistry, Mathematics, English, Biology, Accounts, Economics, Computer Science, and Commerce, with an additional sixth subject available as an optional subject. The CBSE Board has also introduced some new skill electives for Class 12, which include Land Transportation Associate, Electronics and Hardware, Physical Activity Trainer, and Design Thinking and Innovation. Moreover, Class 12 students must choose one subject from Informatics Practices, Computer Science, or Information Technology.

 

The usual CBSE Class 12 board subjects carry 80 marks for theory and 20 marks for internal assessment/project work, while subjects with practical examinations such as Physics, Chemistry, and Biology generally have 70 marks for theory + 30 marks for practical. Most theory examinations are three hours long, and question papers include a mix of objective, short-answer, application-based, case-based, and long-answer questions depending on the subject. CBSE's curriculum also states that internal choices may be provided in several papers.

 

Table of Contents
  1. 12 CBSE Syllabus 2027
  2. 12th CBSE Subjects 2027
  3. 12 CBSE Physics Syllabus 2027
  4. 12 CBSE English Syllabus 2027
  5. 12 CBSE Chemistry Syllabus 2027
  6. 12 CBSE Maths Syllabus 2027
  7. 12 CBSE Commerce Syllabus 2027
  8. 12th CBSE Computer Science Syllabus 2027
  9. CBSE Class 12 Biology Syllabus 2027
  10. CBSE Class 12 Syllabus 2027 FAQs

 

12 CBSE Syllabus 2027

12 CBSE Syllabus 2027 aligns with the National Curriculum Framework (NCF) 2023, emphasizing experiential learning, competency-based assessments, and interdisciplinary approaches. For Class 12, the syllabus is divided into three streams: Science (Physics, Chemistry, Biology/Mathematics, Computer Science, Physical Education), Commerce (Accountancy, Business Studies, Economics, Mathematics/Applied Mathematics, Entrepreneurship), and Humanities (History, Political Science, Geography, Psychology, Sociology, etc.), along with compulsory language subjects (English Core/Elective, Hindi Core/Elective, and other regional languages).

 

CBSE has also introduced skill-oriented subjects for Classes XI-XII under the "Kaushal Vikas" (Vocational Education) and "Computational Thinking & AI" categories. These skill subjects carry 100 marks each (typically 70 theory + 30 practical/project) and can be taken as the 5th or 6th subject. New and updated skill electives for 2026–27 include:

Also Read: CBSE Class 12 Exam Pattern 2027

 

12th CBSE Subjects 2027

12th CBSE subjects 2027 include a compulsory language and an additional language/academic or skill subjects, followed by three electives. A sixth subject can also be taken as an additional subject.

 

12 CBSE Physics Syllabus 2027

CBSE Class 12 Physics syllabus 2027 will carry 70 marks for theory and 30 marks for practical examination. The theory syllabus is divided into nine units and 14 chapters. The highest weightage is allotted to Electromagnetic Induction/Alternating Currents and Optics-related units, while Electrostatics, Current Electricity, and Magnetism together also form a substantial portion of the paper. The unit-wise detailed CBSE Class 12 Physics syllabus 2027 with chapter-wise weightage is provided below.

 

12 CBSE Physics Syllabus 2027 for Practical Examination

The CBSE Class 12 Physics practical examination carries 30 marks. Students must maintain a record of at least 8 experiments (4 from each section) and 6 activities (3 from each section) throughout the academic session. The practical assessment includes two experiments, a practical record, an activity, a project, and a viva. Major practical areas include:

  • Resistivity and resistance experiments
  • Metre bridge experiments
  • Galvanometer and conversion into ammeter/voltmeter
  • AC mains frequency using a sonometer
  • Young's modulus
  • Spring constant
  • Surface tension
  • Viscosity
  • Specific heat capacity
  • Sonometer experiments
  • Resonance tube and speed of sound experiments
  • Electrical circuit activities and investigatory project

 

12 CBSE English Syllabus 2027

12 CBSE English Syllabus is divided into Reading Skills, Creative Writing Skills, and Literature (Flamingo & Vistas). CBSE Class 12 English (Core) carries 80 marks for theory and 20 marks for internal assessment (listening, speaking, and project work). English Core focuses on comprehension, analytical writing, and literature-based interpretation. The writing section includes notice writing, invitations/replies, letters, articles, and reports, while literature questions test comprehension, inference, analysis, and evaluation. The unit-wise breakdown of the 12th Class CBSE English Syllabus is provided below:

 

12 CBSE English Syllabus 2027 for Internal Assessment

The 20 marks are divided into:

  • Listening Skills – 5 marks
  • Speaking Skills – 5 marks
  • Project Work – 10 marks

 

12 CBSE Chemistry Syllabus 2027

12 CBSE Chemistry Syllabus 2027 for the theory paper is divided into Physical, Inorganic, and Organic Chemistry units. 70 marks are allotted to theory, and 30 marks are allotted to practicals. Electrochemistry carries the highest weightage at 9 marks, followed by Aldehydes, Ketones and Carboxylic Acids at 8 marks; most other units carry 6-7 marks. The unit-wise detailed 12 CBSE Chemistry Syllabus 2027 is provided below with subject-wise weightage.

 

12 CBSE Chemistry Syllabus 2027 for Practical Exam

The Chemistry practical component is 30 marks. The syllabus includes surface chemistry, chemical kinetics, thermochemistry, electrochemistry, chromatography, preparation of inorganic and organic compounds, functional-group tests, food tests, titration and qualitative analysis.

 

12 CBSE Maths Syllabus 2027

CBSE Class 12 Mathematics syllabus 2027 is divided into six units and carries 80 theory marks plus 20 marks for internal assessment. Calculus is the largest unit, carrying 35 marks, followed by Vectors and Three-Dimensional Geometry with 14 marks. Approximately 33% internal choices will be provided across sections.

Internal Assessment (20 Marks): Periodic tests (10), Mathematics activities (5), Portfolio (5).

 

12 CBSE Commerce Syllabus 2027

12 CBSE Commerce Syllabus 2027 includes Accountancy, Business Studies and Economics, with Mathematics or Applied Mathematics and English. Students may also choose Entrepreneurship or a suitable skill elective depending on their school.

 

12 CBSE Accounts Syllabus 2027

CBSE Class 12 Accountancy Syllabus 2027 contains Partnership Firms, Companies, Financial Statement Analysis, Cash Flow Statement, and allocates 80 marks to Theory and 20 marks to the Practical examination. Partnership Firms and Companies together carry 60 marks, while Financial Statement Analysis and Cash Flow Statement account for the remaining 20 theory marks.

Project Work (20 Marks): Computerized Accounting using Tally/GST or financial statement analysis, financial statements, accounting ratios, segment reports or cash-flow statements of a listed company.

 

CBSE Class 12 Business Studies Syllabus 2027

CBSE Class 12 Business Studies Syllabus 2027 consists of Principles and Functions of Management; Business Finance; Marketing; Entrepreneurship-related concepts and allocates 80 marks to Theory and 20 marks to the Practical examination.

Project Work (20 Marks): Case study on any organization or field visit report.

 

12 CBSE Economics Syllabus 2027

12 CBSE Economics Syllabus 2027 is divided into Part A (Introductory Macroeconomics) and Part B (Indian Economic Development), with 40 theory marks allocated to each part. An additional 20 marks are assigned to the Economics project. The unit-wise detailed syllabus with chapter-wise weightage for Economics is provided below.

Project Work (20 Marks): Data-based project on any macroeconomic indicator or Indian economic issue (e.g., Inflation trends, Unemployment analysis).

 

12th CBSE Computer Science Syllabus 2027

CBSE Class 12 Computer Science syllabus carries 70 marks for theory and 30 marks for practical. The theory syllabus has three major units: Computational Thinking and Programming-2, Computer Networks, and Database Management. Programming-2 carries the highest weightage at 40 marks, followed by Database Management with 20 marks.

 

12th CBSE Computer Science Syllabus 2027 for Practical Examination

Students must maintain a report file containing Python programs, SQL query sets and Python-SQL connectivity programs. The practical component carries 30 marks.

 

CBSE Class 12 Biology Syllabus 2027

CBSE Class 12 Biology syllabus 2027 carries 70 marks for theory and 30 marks for practical examination. The theory syllabus is divided into 13 chapters and 5 units, with Genetics and Evolution carrying the highest weightage at 20 marks, followed by Reproduction at 16 marks.

 

CBSE Class 12 Biology Syllabus 2027 for Practical Examination

The Biology practical examination is worth 30 marks and includes a major experiment, minor experiment, slide preparation, spotting, practical record/viva and an investigatory project. Major practicals include:

  • Temporary mount for pollen germination
  • Plant population density by quadrat method
  • Plant population frequency by quadrat method
  • Onion root-tip mitosis
  • DNA isolation from plant material
  • Pollination-related spotting
  • Gamete-development slides
  • Meiosis
  • Mendelian inheritance
  • Pedigree charts
  • Controlled pollination
  • Identification of disease-causing organisms
  • Study of homologous and analogous organs
  • Symbiotic associations

 

CBSE Class 12 Syllabus 2027 FAQs

Where can I download the CBSE Class 12 Syllabus 2027 PDF?

Students can download the CBSE Class 12 Syllabus 2027 PDF from cbseacademic.nic.in. Go to the Curriculum 2027 section to get the subject-wise PDFs.

What are the key changes in the CBSE Class 12 Syllabus 2027?

The CBSE 12th Syllabus 2027 focuses more on competency-based questions and critical thinking. It also includes experiential learning and the use of technology like AI.

Will there be two board exams for CBSE Class 12 in 2027?

Yes, some topics are deleted in the CBSE Class 12 Syllabus 2027. Students can check the official deleted syllabus for subject-wise details.

What new skill elective subjects are in the CBSE Class 12 Syllabus 2027?

CBSE has added new skill elective subjects 2027, like Land Transportation Associate, Electronics and Hardware, Physical Activity Trainer, and Design Thinking. These are part of the CBSE Class 12 Syllabus 2027.

Is the CBSE Class 12 Syllabus 2027 harder than Class 11?

Yes, solving CBSE 12th sample papers 2027 is very helpful. It improves your understanding of the exam pattern and boosts confidence.

How will the assessment change in CBSE Class 12 Syllabus 2027?

The CBSE Class 12 assessment 2027 will focus more on critical thinking and practical skills. It moves away from memorization to real-world application.

Can calculators be used in CBSE Class 12 Accountancy 2027?

Yes, basic non-programmable calculators are allowed in CBSE Class 12 Accountancy exam 2027. This will help students in making correct and accurate calculations.

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