

Indian National Junior Science Olympiad 2026 is a world-renowned annual science competition open to all secondary students within India. This Olympiad is conducted by HBCSE, an established institution of excellence in the field of Science Education, to find, encourage, and develop the most talented young people pursuing Scientific Research and ISBN (Index to Books Published) Publication. The participants of INJSO 2026 will take part in an intense and challenging multi-layered competition to measure their confidence, knowledge, critical thinking, and ability to meet the competition requirements and challenges.
Understanding these elements is crucial for prospective participants. The INJSO is conducted by HBCSE.
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INJSO 2026 Overview |
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Particulars |
Details
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Exam Conducting Body |
Homi Bhabha Centre for Science Education (HBCSE) |
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Examination Name |
Indian National Junior Science Olympiad (INJSO) |
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Objective |
Discover, motivate, and channel gifted science students into research |
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Eligibility |
Class 10 or lower, specific age criteria |
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Stages |
Regional Level, National Level, International Junior Science Olympiad (IJSO) |
Meeting the specified eligibility requirements is the first step towards participating in this challenging competition. These criteria ensure that all participants are within the target age and academic groups for INJSO 2026. The complete criteria will be updated.
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INJSO 2026 Eligibility Criteria |
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Criterion |
Details for INJSO 2025 |
Details for INJSO 2026
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Age Limit |
Not crossed 16 by January 1, 2024 |
To be released. |
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Class Requirement |
Class 10 or lower up to November 30, 2023 |
To be released. |
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Nationality |
Indian citizen residing and studying in India |
Indian citizen residing and studying in India |
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Academic Status |
At least 60% aggregate marks in Class IX (first semester) |
To be released. |
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Previous Exemptions |
Must not have appeared in previous IJSO or similar programs |
Same as INJSO 2025 (expected) |
A comprehensive understanding of the exam pattern and syllabus is vital for effective preparation. The INJSO tests students across various scientific disciplines with a structured approach. The detailed syllabus covers core subjects.
Here is the general examination structure for the INJSO:
Duration: 3 Hours
Language: English & Hindi (selectable during registration)
Total Questions: 35
Section 1: Multiple Choice Questions (MCQs)
15 MCQs.
Correct answers: +3 marks.
Incorrect answers: -1 mark.
Section 2: Multiple Select Questions
9 questions, each carrying 5 marks.
No negative marking.
Full marks only if all correct options are chosen.
Section 3: Subjective Questions
11 questions.
Emphasis on method and reasoning; detailed process is crucial.
Valid assumptions/approximations are acceptable. Extra sheets available if needed (maximum two).
The INJSO syllabus aligns closely with the NCERT curriculum for classes 9 and 10, often extending to higher-level concepts. Key subjects and topics include:
Physics: Light (Concave Mirror, Deviation Through Two Plane Mirror, T.I.R, Shadow), Sound (Echo, Node & Anti Node), Electricity, Work, Power, Energy (Efficiency & Power), Magnetism, Gravitation, Simple Harmonic Motion (Simple Pendulum), Fluid (Floatation), Force, Heat (Radiation, Anomalous Behaviour of Water, Thermal Expansion), Rectilinear Motion (Velocity Motion, Newton’s Laws Of Motion), Unit Dimension, Electrostatics (Ohm’s Law, Coulomb’s Law, Combination Of Resistance, Potential).
Mathematics: Permutation & Combination, Arithmetic Progression, Area Of Parallelogram & Triangles, Similar Triangles, Circle, Geometric Progression, Linear Equation In Two Variable, Number System, Quadratic Equation, Quadrilaterals, Ratio & Proportion, Trigonometry.
Chemistry: Acids, Bases, And Salts, Analytical Science and Maths, Metals And Non-Metals, Mole Concept, Carbon, Study Of Gas Laws, Equivalent Concept, Periodic Table And Periodicity In Properties.
Biology: Biodiversity (Chordates, Monera, Non-Chordates), Biotech (GMC – Genetically Modified Crops), Control and Coordination (Endocrine System, Nerve conductor, Sympathetic Nervous System), Cell Biology (Cell Organelles, Types of Cell), Human Health & Diseases (Immunity), Reproduction (Asexual Reproductions), Heredity and Evolution (DNA Fingerprinting, DNA), Microbes in Human Welfare.
While INJSO 2025 notably had no separate registration, candidates for INJSO 2026 should be aware of the general application procedure..
The typical steps involved in registering for the INJSO are:
Official Website Visit: Navigate to the designated official website for Olympiad information.
Olympiad Section: Locate the section pertaining to upcoming events and the INJSO.
Form Completion: Accurately fill out the online registration form with all required personal and academic details, including birth date and any identification codes.
Test Center Selection: Choose your preferred examination centre from the available options.
Submission: Submit the completed registration form.
Participation in the Indian National Junior Science Olympiad offers numerous advantages, extending beyond mere competition.
Enhanced Scientific Knowledge: Rigorous preparation significantly deepens understanding of fundamental scientific concepts.
Developed Critical Thinking: The Olympiad fosters advanced critical thinking and complex problem-solving abilities.
Increased Confidence: Success instills greater self-confidence and promotes a passionate pursuit of scientific interests.
Exposure to Research: Participants gain insight into cutting-edge scientific research and interact with experts.
International Opportunities: High achievers may unlock global opportunities, including scholarships and research prospects.