NIOS Class 12 Biology Syllabus 2025 PDF: Chapter List & Topics (Complete List)
Upcoming Event
NIOS Class 12 Exam Date:03 Nov' 25 - 03 Nov' 25
The National Institute of Open Schooling has released the bifurcated NIOS Class 12 Biology syllabus 2025, dividing it into Tutor-Marked Assignments (TMA-40%) and Public Examination syllabus (60%). This bifurcation is aimed at helping students manage their studies systematically and focus on both internal and external evaluations.
This Story also Contains
- NIOS Class 12 Biology Syllabus 2025 - Topics and Marks Weightage
- NIOS 12th Biology Syllabus 2025 - Difference between TMA and Public Examination Syllabus
- How Can I Download the NIOS 12th Biology Syllabus PDF Online?
The official PDF of the NIOS Class 12 Biology bifurcated syllabus 2025 is available online at nios.ac.in. The syllabus remains the same for both NIOS 12th public examination and on-demand exams. The NIOS will conduct the Class 12 Biology theory exams for the October session in October/November 2025. Read further to get the direct download link of the Biology syllabus NIOS Class 12 and other details.
Download NIOS Class 12 Biology Syllabus 2025 PDF (Bifurcated)
Particulars | Download PDF |
NIOS Class 12 Biology Syllabus 2025 |
NIOS Class 12 Biology Syllabus 2025 - Topics and Marks Weightage
Students who are going to appear in the NIOS 12th exams must get well-versed with the syllabus. The NIOS 12th Biology syllabus PDF covers a total of 31 lessons, divided across five modules. In the following table, students can go through the details of the bifurcated syllabus:
NIOS Class 12 Biology Syllabus 2025
Module (No. & Name) | Marks | TMA (40%) | Public Examination (60%) |
Module I: Diversity and Evolution of Life | 12 Marks |
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Module II: Forms and Functions of Plants and Animals | 26 Marks |
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Module III: Reproduction and Heredity | 22 Marks |
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Module IV: Environment and Health | 13 Marks |
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Module V: Emerging Areas in Biology | 7 Marks | – |
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NIOS 12th Biology Syllabus 2025 - Difference between TMA and Public Examination Syllabus
The NIOS Class 12 syllabus of Biology is carefully structured to balance theoretical concepts with practical relevance. It is divided into TMA and Public Examination, which means:
Tutor-Marked Assignments (40%) - TMAs are an essential part of the NIOS learning process, contributing to internal assessment. These include selected lessons from each module to be completed and submitted by students or learners.
Public Examination (60%) - Covers major lessons for the final board examination.
How Can I Download the NIOS 12th Biology Syllabus PDF Online?
Students can download the NIOS 12th Biology 2025 syllabus PDF online through the official website. They can follow the steps given below to download the same:
Go to the website, nios.ac.in.
Go to the ‘Learners Corner’ tab. Click on ‘Study Material’.
Click on the option of ‘Senior Secondary Courses’.
Next, click on the ‘Biology(314) option’.
Then, click on ‘Syllabus Bifurcation of Biology (314)’. The NIOS 12th Biology PDF will open on the screen.
Download the PDF of the NIOS 12th Biology syllabus and prepare for the exams accordingly.
NIOS Class 12th Syllabus
Download the NIOS Class 12th syllabus for 2025-26, covering all subjects and topics to help students plan their studies and excel in board exams.
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Questions related to NIOS Class 12
On Question asked by student community
Have a question related to NIOS Class 12 ?
Hello,
The NIOS October session theory admit card for both Class 10 and 12 is expected to be released in October 2025. You can download it from the official NIOS website, https://sdmis.nios.ac.in/, (https://sdmis.nios.ac.in/) by entering your enrollment number and selecting the hall ticket type.
I hope it will clear your query!!
Hi dear candidate,
You can find the NIOS class 12th Business Studies and home science question papers on our official website that you can download.
Kindly refer to the links attached below:
NIOS Question Papers 2025-26: Download 10th, 12th Previous Year Paper Here
NIOS 12th Business Studies Question Paper April 2023
NIOS 12th Home Science Question Paper April 2023
BEST REGARDS
Hey Sapna:)
Thanks for reaching out!
Yes, NIOS offers physical classes called personal contact program(PCP) at its study centre across india. These classes are meant to help students of both class 10th and 12th by providing doubt clarification, practical demonstration and guidance.These sessions are usually held on weekends or holidays, attendance is not mandatory but recommended.
You can find nearby centres and their schedules using the official NIOS Study Centre Locator.
Hope you'll find this helpful
According to the eligibility criteria for JEE Advanced, the candidates must have appeared in Class 12th and scored 75% aggregate marks. For the first time, you appeared in the CBSE Class 12 board exam in 2024, and in 2025, you appeared in the 12th examination from the NIOS board and scored 75%. Since NIOS is a recognised board, and you fulfil the aggregate marks, you are eligible to appear in JEE Advanced 2026 .
Yes, you can definitely appear for the 12th again through NIOS with PCM subjects.
This will make you eligible for JEE exams.
However, your previous PCMB degree will still hold validity. It won't be replaced or affected by the new NIOS certificate. You'll essentially have two 12th certificates.
Important Considerations:
- Time Management: Balancing NIOS studies and JEE preparation will be challenging.
- Eligibility Criteria: Ensure you meet the specific eligibility criteria for JEE, especially regarding age limits and other requirements.
- Exam Strategy: Develop a focused study plan to excel in both NIOS exams and JEE preparation.
Remember: While this is a potential path, carefully evaluate if it aligns with your long-term goals and if you're prepared for the academic and time commitment involved.
hope this helps you!!
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