CBSE Syllabus Changes for 2025–26 – New Subjects and Deleted Topics for Classes 10 & 12

The CBSE Syllabus 2025-26 Update is now officially out, and it brings some of the most important academic changes for Class 10 and 12 students across India. With the Central Board of Secondary Education aligning its curriculum with the NEP 2020 guidelines, students and educators can expect a more skill-based, concise, and balanced academic year starting April 2025.

The syllabus reduction has been carefully designed to reduce rote learning, ease exam pressure, and introduce practical application-based questions. This shift is a direct result of CBSE’s push towards holistic education that encourages curiosity and innovation in students.

These changes under the CBSE 2025 updates apply to both Science and Commerce streams as well as core Class 10 subjects like Mathematics, English, Social Science, and Science. Here’s everything you need to know.

CBSE Syllabus Changes for 2025–26 – New Subjects and Deleted Topics for Classes 10 & 12

What’s New in the 2025–26 CBSE Curriculum?

The updated CBSE syllabus 2025-26 now includes multiple adjustments in major subjects for Class 10 and Class 12. Here’s a breakdown:

Class 10 Key Updates:

  • Science: Removed chapters on “Heredity and Evolution” and reduced complexity in “Chemical Reactions.”

  • Social Science: Topics related to the Cold War and post-independence movements have been streamlined.

  • English: Simplified grammar exercises and reduced length of comprehension passages.

  • Mathematics: Linear Equations and Surface Areas simplified for clarity and logical reasoning.

Class 12 Key Updates:

  • Physics: Numerical-heavy topics have been restructured for better conceptual clarity.

  • Business Studies: Case studies added based on real Indian business practices.

  • Political Science: Updated to include recent political developments and constitutional changes.

  • English Core: New reading material with focus on contemporary prose and writing formats.

These syllabus changes fall under a structured syllabus update process to ensure alignment with global education benchmarks and the dynamic needs of Indian learners.

Full List of Added and Deleted Topics

Below is a snapshot of major additions and deletions under the CBSE Syllabus 2025-26 Update:

Class Subject Deleted Topics Added Topics
10 Science Heredity & Evolution Sustainable Energy and Green Chemistry
10 Social Science Cold War Events Indian Constitution – Focused Amendments
12 Economics National Income Complexity Section Digital Economy and Crypto Overview
12 English Core Lengthy Prose Chapters Real-life Essays and Speeches

The CBSE 2025 changes aim to replace outdated examples with modern and relatable content to improve students’ critical thinking and real-world understanding.

What This Means for Students and Teachers

For students, these syllabus updates mean less content overload and more engaging study sessions. It will also help them prepare better for competitive exams that test application rather than memorization. Teachers are being trained to adapt their lesson plans and assessments to suit this new format.

Schools affiliated with CBSE will begin implementing these changes from the 2025–26 academic year, with term-wise division and revised blueprint-based model question papers.

The CBSE 2025 revision also brings in greater focus on interdisciplinary projects, value-based questions, and competency-based assessments across subjects.

How to Access the New Syllabus?

Students can download the detailed CBSE syllabus 2025-26 update PDF from the official CBSE Academic website. All revised syllabi are available subject-wise, including sample papers and marking schemes.

CBSE has also introduced an updated mobile app where you can view syllabus changes, track assignments, and access board circulars. The education news portal on CBSE’s website also publishes latest updates regularly.


FAQs

What is the CBSE Syllabus 2025-26 Update?

The CBSE Syllabus 2025-26 Update refers to the official curriculum revision by CBSE for Classes 10 and 12, including subject-wise additions, deletions, and structure changes in line with NEP 2020.

Which chapters have been removed in CBSE 2025?

Chapters like “Heredity & Evolution” in Class 10 Science and “Cold War” in Social Science have been deleted. The syllabus has been trimmed to remove redundant or outdated content.

Are the new subjects mandatory?

No, CBSE has introduced optional interdisciplinary subjects like “Sustainable Living” or “Digital Economy.” Core subjects remain mandatory.

When will the new syllabus be implemented?

The revised syllabus under CBSE 2025 will be implemented starting the academic year 2025–26, effective from April 1, 2025, across all CBSE-affiliated schools.

Where can I download the new syllabus?

You can download the complete CBSE Syllabus 2025-26 Update from the CBSE academic website or the official mobile app released for students and teachers.

Click here to know more.

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