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NSEB 2026: Exam Date, Eligibility, Registration & Complete Details

The National Standard Examination in Biology (NSEB) 2026 is expected to be held on 23 November 2026. Conducted by Indian Association of Physics Teachers with Homi Bhabha Centre for Science Education, it is the first stage of the Biology Olympiad for Class 11 and 12 students in India.
authorImagePriyanka Dahima16 Mar, 2026
NSEB 2025

NSEB 2026: The National Standard Examination in Biology (NSEB) is a competitive examination for higher secondary school students in India, primarily aimed at those in Classes 11 and 12. It serves as the first stage in the selection process for the International Biology Olympiad (IBO).

NSEB is organized by the Association of Teachers in Biological Sciences in collaboration with the Indian Association of Physics Teachers (IAPT) and the Homi Bhabha Centre for Science Education (HBCSE). 

The National Standard Examination in Biology (NSEB) 2026 is expected to be conducted on 23 November 2026 from 2:30 PM to 4:30 PM at designated exam centres across the country.

NSEB 2026

The Indian Association of Physics Teachers (IAPT) with the help of the Homi Bhabha Centre for Science Education conducts the National Standard Examination in Biology, commonly known as NSEB, which is the first stage of the International Biology Olympiad.

The National Standard Examination in Biology (NSEB) 2026 exam is expected to be held in November 2026. Students who have not yet completed Class 12 will be eligible to appear for the examination. In this article, we have covered all the important details about NSEB 2026, including the online application process, exam pattern, syllabus, eligibility criteria, and other key information.

Check: How to Prepare for NSEB?

NSEB Full Form 

NSEB stands for National Standard Examination in Biology. The NSEB Exam is all about organizing national science biology competition to help students shine and get ready for international competition as it acts as the first stage of the International Biology Olympiad.
The NSEB Exam interests those students studying or pursuing Biology, it is a nationwide exam. Students who wish to take NSEB examinations must first register themselves on the official website of IAPT.

Student Feedback Form

NSEB 2026 Overview 

In order to find and develop scientific talent in India, higher secondary school students participate in the National Standard Examination in Biology (NSEB), a national level test. NSEB offers brilliant young minds a chance for worldwide exposure in addition to an international platform for learning.
Indian Association of Physics Teachers has announced the NSEB Registration Dates and exam date at iapt.org.en. For the students who plan to take the test, we have included below all the pertinent information on the NSEB 2026.
NSEB 2026 Overview
Organization IAPT (Indian Association of Physics Teachers) in collaboration with HBCSE (Homi Bhabha Centre for Science Education),
Exam Name National Standard Examination in Biology (NSEB) 2026
Application Mode Online
Types of Questions Multiple Choice Questions (MCQs) - 60 Questions
Total Marks 216
Negative Marking For each wrong response, one mark will be deducted.
Official Website https://www.iapt.org.in/

NSEB 2026 Important Dates

The National Standard Examination in Biology (NSEB) 2026 registration process is expected to be released soon by the Indian Association of Physics Teachers (IAPT). Candidates will be able to complete the online registration once the application window opens on the official website.

The NSEB 2026 important dates will be announced along with the official notification. Candidates can check the table below for the expected schedule of NSEB 2026.

NSEB 2026 Important Dates (Expected Date)

Centre registration start date

1st August 2026

Last date for NSEB 2026 Center registration date

 20th August 2026

NSEB 2026 Student enrolment start date

21st August 2026

NSEB 2026 Student enrolment end date

14th September 2026

NSEB Exam Date 2026

23rd November 2026 (2.30 pm to 4.30 pm)

NSEB Result 2026

 23rd December 2026

NSEB 2026 Admit Card

The  National Standard Examination in Biology (NSEB) 2026 exam is expected to be conducted in November 2026. The official notification and exam details will be released on the website of the Indian Association of Physics Teachers (IAPT).

The NSEB Admit Card 2026 will be released online before the examination on the official website. Candidates appearing for the NSEB Olympiad 2026 must download their admit card and carry it to the exam centre, as it is a mandatory document for entry into the examination hall.

NSEB Eligibility Criteria 

NSEB Exam is for Indian students who have a keen interest in chemistry and have excelled in biology. Students at the higher secondary level take this exam and around 850 centres are allocated by the organizing committee in various cities and towns to facilitate the examination process. Students must satisfy the eligibility criteria mentioned below:

  • The applicant must be an Indian citizen first.
  • The NSEB test is designed for students in grades 11 and 12.
  • Date of birth between July 1, 2006 and June 30, 2011, both dates inclusive.
  • Must be residing and studying in India on or before November 30, 2023. Must be studying in the Indian school system on or before November 30, 2023.
  • Must not have completed (or intend to complete) the Class 12 board examinations before 30 November 2026.
  • Must not have commenced (or intend to commence) studies at a university or equivalent institution before 1 June 2026.
  • Must not appear in NSEJS 2026.

NSEB Registration 2026

The IAPT (Indian Association of Physics Teachers) will start the NSEB Registration Process 2026. The candidates can apply and pay the fees via the IAPT website after verifying their eligibility. The NSEB 2026 Online Application must be submitted with all necessary paperwork. It is advisable to complete the NSEB Registration before the deadline to avoid any kind of glitches.

NSEB 2026 Application Fee

To finish the NSEB 2026 Online Registration Process, students must pay a registration fee of Rs. 300/-. Students who advance to the next level and beyond are exempt from paying until the very end as this is a one-time cost. The NSEB registration fee 2026 can be paid via online or offline mode. This fee is non-refundable and is paid during the registration process, which typically occurs through the student's school or a registered NSE centre

Steps for NSEB 2026 Registration

Candidates must register at the NSEB 2026 Exam centres before the deadline. While registering, students can also choose the language they are most comfortable with and take the exam in English or Hindi. You can get the NSEB Registration form by following the steps below:
Step 1: Students must first contact the NSEB centers. Over the past few years, IAPT has opened thousands of centers. Students can get the application form from one of the local NSEB centers.

Step 2: After visiting the nearest NSEB center, students can get the NSEB application form from the center coordinator and submit it after filling in the necessary details.

Step 3: Students who want to appear for the NSEB 2026 exam can also register online by clicking on the application form link available on the official website of IAPT.

Step 4: A registration fee is required to be paid while filling the form in both offline and online cases.

Step 5: You will have to pay a registration fee of Rs 300/-.

Step 6: After payment of the fee, students will be eligible to download the NSEB admit card after its official release by the organizing authority.

Step 7: This will be a one-time fee and students will not have to pay any further fees if they clear the exam and appear for the next level(s).

Stages After NSEB 

  • NSEB: The NSEB (National Standard Examination in Biology) is the first stage, and all students in grades 1 to 12 are entitled to participate after enrolling for the tests.
  • INBO: The Indian National Olympiad or Indian National Biology Olympiad is the second stage of the exam, and only 300 qualified students who scored higher than others are allowed to compete. The INBO is held at various locations across India.
  • OCSC: Approximately 35 students are selected from INBO to attend this camp. The OCSC camp focuses on theoretical and practical training to prepare students for the international level.
  • PDT: The Pre-Departure Training Camp offers intensive training to the top four students selected from OCSC.
  • IBO: In the final stage, students represent their school and country in the International Biology Olympiad on a global platform.

Online Coaching for NSEB 2026 

PW Online Coaching for National Standard Examination in Biology (NSEB) 2026 is all about having the appropriate information along with dedication and effective communication. Our NSEB Exam 2026 online coaching is customized for each student and made to work with their hectic schedules. Since grades earned in NSEB 2026 are now closely linked to opportunities for job progression and life, it is important to support each student's capacity for learning.
We employ a range of interactive resources and methods to successfully mentor young pupils throughout the country. The fundamental objective of this batch, which has been carefully designed to accommodate students for Class 11 and 12, is to enable them to achieve exceptional results on the NSEB test. 24/7 access to lecture recordings will be possible, enabling students to review and revisit the material at their convenience.

NSEB 12TH 2026

NSEB 11TH 2026

NSEB Exam Pattern 2026

To crack a competitive exam, it is essential to have a clear understanding of the exam pattern which consists of 60 Multiple Choice Questions. Before starting the NSEB exam preparation, students should familiarize themselves with the NSEB Exam Pattern.
NSEB Exam Pattern 2026
Duration of Exam Two hours
Test Paper Level/ Syllabus It is broadly equivalent to the senior secondary level (up to and including Class XII) of CBSE India
Test Medium/ Language Question paper will be in English & Hindi (Option during registration). Type of questions – Objective type with multiple choices
Sections Two parts
Total Number of Questions 60 MCQs
Total Marks 216 Marks

NSEB Syllabus 2026

The NSEB syllabus is broadly equivalent to the senior secondary level (up to and including Class XII) equivalent to CBSE Syllabus. In the below table we have provided the chapter-wise comprehensive details of Indian National Biology Olympiad
NSEB Syllabus 2026
Chapters Topics Included
Diversity Of Living
  • The Living World
  • Biological Classification
  • Plant Kingdom
  • Animal Kingdom
Structural Organization in Animals and Plants
  • Morphology and Anatomy of Flowering Plants
  • Structural Organisation in Animals
Cell: Structure and Function
  • Cell theory and cell as the basic unit of life
  • Biomolecules
  • Cell Cycle and Cell Division
Plant Physiology
  • Transport In Plants
  • Mineral Nutrition
  • Photosynthesis and Respiration in Higher Plants
  • Plant – Growth and Development
Human Physiology
  • Digestion & Absorption
  • Breathing & Exchange Of Gas
  • Body Fluids and Circulation
  • Excretory Products and Their Elimination
  • Locomotion and Movement
  • Neural Control and Coordination
  • Chemical Coordination and Integration
Reproduction In Organisms
  • Types, modes, and the process of reproduction
  • Asexual reproduction
  • Sexual reproduction
  • Pre-fertilization events
  • Fertilization and post-fertilization events
Sexual Reproduction in Flowering Plants
  • Flower Structure
  • Morphology Of Flower
  • The process of sexual reproduction in flowering plants.
  • Development of male and female gametophytes
  • Pollination
  • Double fertilization
  • Post fertilization Events-Development of endosperm and embryo
  • Development and significance of seed and formation of fruit
Human Reproduction
  • Male and female reproductive systems
  • Microscopic diagram elaborating anatomy of testis and ovary
  • Gametogenesis − Spermatogenesis, Oogenesis
  • Menstrual cycle
  • Fertilization, implantation pregnancy, and placenta formation
  • Parturition and Lactation
Reproductive Health
  • The need for reproductive health
  • Prevention of sexually transmitted diseases (STD)
  • Birth control − need and methods, contraception, Medical Termination of Pregnancy (MTP)
  • Amniocentesis
  • Infertility and assisted reproductive technologies
Principles Of Inheritance And Variation
  • Covers the topics of Genetics and Evolution
  • Similarity and variation between the parents and offspring
  • Mendel”s law of inheritance
  • Sex determination
  • Mutations genetic disorders
Molecular Basis of Inheritance
  • DNA as genetic material
  • Structure of DNA and RNA
  • DNA- packaging, replication, fingerprinting
  • Central dogma, Transcription, genetic code, translation
  • Gene expression and regulation − Lac Operon
  • Genome and human genome project
Evolution
  • Darwin’s contribution
  • Modern Synthetic Theory of Evolution
  • Mechanism of evolution − Variation, Natural Selection and types of natural selection
  • Gene flow and genetic drift
  • Hardy – Weinberg’s Principle
  • Adaptive Radiation
Human Health And Diseases
  • Maintenance of optimum health
  • Diseases- types, treatment, and prevention
  • Immunity and its types
  • Adolescence, drug and alcohol abuse
Strategies for Enhancement in Food Production
  • Improvement in food production techniques
  • Plant breeding, Tissue culture
  • Single-cell protein
  • Biofortification, Apiculture
  • Animal husbandry
Microbes in Human Welfare
  • In household food processing and industrial production
  • Sewage treatment
  • Energy generation
  • Biofertilizers
  • Antibiotics- Production and judicious use
Biotechnology – Principles and Processes
  • Principles and processes involved in biotechnology like genetic engineering (Recombinant DNA technology).
Biotechnology and Its Applications
  • The application processes of Biotechnology in health and agriculture
Organisms and Populations
  • Organisms and environment- Habitat, Niche, Population and Ecological adaptations
  • Population interactions- Mutualism, Competition, Predation, Parasitism
  • Population attributes
Ecosystem
  • Ecological Patterns, components, productivity, decomposition
  • Energy flow in the ecosystem
  • Pyramids of number, biomass, energy
  • Carbon and Phosphorous Nutrient cycles
  • Ecological succession and services
Biodiversity and Its Conservation
  • Concept, Patterns, Importance, and loss of biodiversity
  • Biodiversity conservation ways
Environmental Issues
  • Air and water pollution and its control methods
  • Agrochemicals and their effects
  • Solid waste management
  • Radioactive waste management
  • Greenhouse effect and climate change
  • Ozone layer depletion
  • Deforestation

NSEB Previous Year Question Paper 

NSEB Previous Year Question Papers help students understand the difficulty level of the questions that will be asked and manage the time to answer all the questions in the exam. Students can download previous papers of the National Standard Examination in Biology from the official website of NSEB and prepare for the exam. We have also attached the direct link to download the NSEB PYQ PDFs.

NSEB 2026 FAQs

What is NSEB?

The NSEB exam is a part of the NSE (National Standards Examination), which conducts National Science Olympiads to motivate students and provide them with a platform to participate in international competitions.

Is it possible for me to immediately compete in the International Biology Olympiad?

No, a student who has not completed the several phases of testing that lead to IMO selection would not be permitted to represent India abroad. If a student wishes to participate in IMO, he or she must first pass the NSEB exam. Students who pass the tests will be allowed to join the training camp.

What is the NSEB 2026 Exam Date?

The NSEB 2026 Olympiad Exam expected to be held on 23rd November 2026.

Who is eligible for NSEB Olympiad 2026?

The students of Class 11 and 12 are eligible for NSEB Olympiad 2026, who must not appearing for the NSEJS 2026.

Is the NSEB exam subject to negative marking?

Yes, students receive three points for each accurate answer and one point is subtracted from their overall score for each erroneous response.

What is the official website to apply for NSEB 2026 Exam?

Indian Association of Physics Teachers (IAPT) is the official website to apply for NSEB 2026 Exam.
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