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NSEJS Exam 2025: Complete Student Guide

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NSEJS 2025 Syllabus & Exam Pattern Explained

The NSEJS Exam 2025—National Standard Examination in Junior Science—is your first step towards excelling in competitive science Olympiads. This guide covers NSEJS eligibility, exam dates, syllabus, detailed paper pattern, and provides previous year papers for targeted practice. Whether you're in Class 9, 10, or younger, discover how you can qualify, what to study, and expert strategies to boost your scores and reach the next stage of India’s premier science Olympiad journey.

NSEJS Exam 2023-24

Ready for NSEJS? Explore Past Papers & Start Preparing Today

NSEJS (National Standard Examination in Junior Science) is India’s largest and most competitive school science Olympiad for young students, paving the way for global science achievements. Organized by IAPT and HBCSE, the exam tests mastery in Physics, Chemistry, Biology, and Mathematics through advanced, logical, and conceptual multiple-choice questions. This page provides you with official NSEJS eligibility criteria, important dates, syllabus topics, exam pattern, verified registration steps, result process, and the best preparation strategies for 2025 aspirants.


NSEJS Important Dates

Event Date
Registration Window 1 August – 20 August 2025 (Tentative)
NSEJS Exam Date 30 November 2025 (Tentative)
Admit Card Issue Early November 2025 (Tentative)
Result Declaration January 2026 (Tentative)

NSEJS Eligibility Criteria

  • Class/Grade: Must be enrolled in 10th Standard or below during 2025.
  • Age: Born between 1 January 2010 and 31 December 2011 (Tentative; check official IAPT updates).
  • Citizenship: Only Indian citizens (OCI/PIO not eligible as per latest rules).
  • No Prior 10th Pass: Should not have passed Class 10 board before 1 November 2025.
  • One Stream Only: Cannot apply for NSEA, NSEB, NSEC, or NSEP in the same session.

NSEJS Syllabus & Subjects

The NSEJS syllabus covers advanced school-level Physics, Chemistry, Biology, and Mathematics, largely based on national curricula but can include deeper or cross-linked topics. Preparing with NCERTs, Olympiad books, and focused concept applications is essential for the multidisciplinary approach in the exam.

  • Physics: Light, Wave motion, Mechanics, Electricity & Magnetism, Heat, Optics, Modern physics basics.
  • Chemistry: Matter, Chemical reactions, Metals & Non-metals, Periodic table, Environmental Chemistry, Carbon compounds.
  • Biology: Cell biology, Classification, Genetics, Human body, Microbes, Plant & Animal physiology, Evolution.
  • Mathematics: Algebra, Arithmetic, Geometry, Number systems, Progressions, Permutations & Combinations, Data interpretation.

Some questions may require logical reasoning across these areas. Full official topic details are available at the NSEJS syllabus page.


NSEJS Exam Pattern

Subject No. of Questions Marks per Question Total Marks
Physics 20 3 (+3, –1) 60
Chemistry 20 3 (+3, –1) 60
Biology 20 3 (+3, –1) 60
Mathematics 20 3 (+3, –1) 60
Total 80 240
  • Duration: 2 hours (120 minutes)
  • Type: Multiple Choice, one correct answer (OMR sheet based)
  • Marking Scheme: +3 for correct, –1 for incorrect
  • Languages: English & Hindi
  • No sectional timings

NSEJS Registration Process

  1. Identify the nearest authorized NSEJS centre through the official IAPT site.
  2. Collect the application form from your school or exam centre.
  3. Fill in all personal, class, and birth details as per eligibility. Attach required age and school proofs.
  4. Deposit the registration fee (₹150 as per last year; confirm for this year) at the centre before the deadline.
  5. Receive your NSEJS admit card before the scheduled exam date.

Candidates are not permitted to register for multiple science NSE Olympiads in the same year.


NSEJS Preparation Tips

  • Review every topic in the NSEJS syllabus and focus on concept-based as well as application questions.
  • Solve multiple NSEJS previous year papers for pattern familiarity and time management.
  • Take full-length mock tests under real exam timing. Analyze mistakes.
  • Refer to Olympiad-specific guides such as MTG NSEJS Explorer or similar resources.
  • Consider joining online batches or live Olympiad classes. Explore the Vedantu Science Olympiad Courses for structured preparation.
  • Build strong interlinking across Physics, Chemistry, Biology, and Maths for multi-concept questions.
  • Regularly revise high-yield topics and your mistake logs.

NSEJS Details Mentioned in the Admit Card

  • Student’s full name and roll number
  • Exam date and reporting time
  • NSEJS exam centre address and code
  • Date of birth and category details
  • Candidate photo (if applicable)
  • Exam subject codes and important instructions

NSEJS Results & Cut-Off Announcement

The NSEJS results and cut-off scores are released on the official IAPT portal by January every year. Students can check their scores using roll number. The Minimum Admissible Score (MAS) is typically 50% of the exam’s total marks (may vary). The top students by state and overall merit progress to INJSO (next stage), as detailed on the INJSO exam page. Merit certificates are awarded by centre and state for high achievers.


What to Do After the NSEJS Exam

  • Check your results promptly when announced.
  • If shortlisted, prepare for INJSO – Indian National Junior Science Olympiad (next level exam pattern is tougher).
  • Download the answer key to analyze performance and identify improvement areas.
  • Use the merit certificate for scholarship, summer camps, or science program applications.
  • Explore international Olympiad opportunities and syllabus connections via the International Junior Science Olympiad (IJSO) guide.

This NSEJS 2025 page covers every essential step: updated eligibility, syllabus, pattern, registration, exam dates, result process, and focused preparation tips. Use the official sections and links to access reliable resources, guidance, and official notifications for your junior science Olympiad journey—all in one place.

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FAQs on NSEJS Exam 2025: Complete Student Guide

1. What is NSEJS?

NSEJS stands for National Standard Examination in Junior Science, India's premier national-level Olympiad for Class 9 and 10 students covering Physics, Chemistry, Biology, and Mathematics.

Key facts:

  • First step towards IJSO (International Junior Science Olympiad).
  • Organized by IAPT and HBCSE.
  • Tests problem-solving, scientific reasoning, and interdisciplinary science concepts.
  • Acts as a selection gateway for INJSO, OCSC, and ultimately IJSO.

2. What is the eligibility for NSEJS?

To be eligible for NSEJS 2025, candidates must meet the following criteria:

  • Class: Studying in Class 10 or below during the current academic year.
  • Age: Born between 1st January 2010 and 31st December 2011 (tentative for 2025).
  • Citizenship: Must be an Indian citizen.
  • Should not have passed Class 10 board exam before 1st November 2025.
  • Cannot apply for NSEA, NSEC, NSEB, or NSEP in the same year.
Check the latest notification for any updates each session.

3. How to prepare for NSEJS?

The best way to prepare for NSEJS is to combine school syllabus mastery with Olympiad-level practice:

  • Cover all NCERT/ICSE topics for Class 9–10 in Physics, Chemistry, Biology, and Maths.
  • Practice with previous year NSEJS papers and mock tests.
  • Use Olympiad-specific books like MTG Explorer and Pearson’s Science Olympiad Series.
  • Focus on conceptual understanding and cross-disciplinary problem-solving.
  • Take regular timed tests and join credible online coaching batches if needed.

4. What is the syllabus of NSEJS?

NSEJS syllabus broadly follows the CBSE/ICSE/State Boards' Class 9 and 10 syllabi for Physics, Chemistry, Biology, and Mathematics, but can include advanced and Olympiad concepts.

Main areas include:

  • Physics: Light, SHM, Gravitation, Electricity, Magnetism, Motion, Heat.
  • Chemistry: Acids and Bases, Mole Concept, Carbon Compounds, Periodic Table, Analytical Chemistry.
  • Biology: Cell Biology, Genetics, Biodiversity, Evolution, Microbes.
  • Mathematics: Number System, Algebra, Geometry, Trigonometry, Ratio and Proportion.
Always check the official NSEJS syllabus PDF for the latest topics.

5. What is the exam pattern for NSEJS?

NSEJS exam pattern consists of:

  • Total Questions: 80 multiple-choice questions (20 each from Physics, Chemistry, Biology, and Mathematics).
  • Marking Scheme: +3 for correct answers, -1 for incorrect.
  • Total Marks: 240.
  • Duration: 2 hours (120 minutes).
  • Languages: English and Hindi.

6. How to register for NSEJS?

Registration for NSEJS typically involves the following steps:

  1. Identify your nearest NSE centre/school listed by IAPT.
  2. Obtain and fill out the application form from the centre or your school.
  3. Submit the form with necessary documents (age/class proof) and pay the registration fee (around ₹150 as per last session).
  4. Collect your admit card before the exam date.
Always follow the official IAPT notification and stick to one Olympiad exam stream per year.

7. Is NSEJS and NSEA the same?

No, NSEJS is for Junior Science (Class 10 or below), while NSEA (National Standard Examination in Astronomy) is for higher classes focusing on astronomy and astrophysics.

Key differences:

  • NSEJS: Physics, Chemistry, Biology, Maths for juniors.
  • NSEA: Astronomy for Class 11–12 students.
  • Different eligibility, pattern, and progression routes.

8. What are the benefits of NSEJS?

NSEJS offers multiple benefits to motivated science students:

  • Gateway to INJSO, OCSC, and IJSO (international competitions).
  • Early exposure to advanced science concepts and competitive exams.
  • State and national merit certificates add to student resumes.
  • Preparation base for future exams like JEE and NEET.
  • Scholarships, career recognition, and networking with top students across India.

9. How to check NSEJS results?

NSEJS results are announced online by IAPT:

  1. Visit the official IAPT website during January (following the exam year).
  2. Enter your roll number and name to access your result.
  3. Check the cutoff scores for selection to the next stage (INJSO).
Keep admit card details handy for quick access.

10. Where can I download NSEJS previous year papers and answer keys?

NSEJS previous year papers with answer keys can be downloaded from trusted Olympiad preparation platforms:

  • Look for PDFs for years like 2023, 2022, 2021, and 2020 with solutions.
  • Use these for realistic practice and to understand question difficulty and pattern.
  • Practicing with official answer keys helps in exam strategy and self-assessment.

11. Can Class 8 or below apply for NSEJS if they meet the age criteria?

Yes, Class 8 students or below can apply for NSEJS if they satisfy the minimum age requirement and other eligibility criteria for the current session.

12. Is there any negative marking in NSEJS?

Yes, NSEJS has a negative marking system:

  • -1 mark is deducted for each incorrect answer.
  • This encourages careful reading and answering.