The Indian National Olympiad (INO) Result 2026 has been announced by the Homi Bhabha Centre for Science Education (HBCSE) for Biology. Candidates can now check their selection status for Group A (Class 12) and Group B (Class 11 and Class 10). The cutoff marks have also been released, and shortlisted students will receive confirmation and further instructions through their registered email IDs.
INBO 2026: Biology Olympiad Result (Out), Eligibility, Syllabus & Exam Pattern
INBO 2026 is the second stage of the Biology Olympiad conducted by HBCSE for NSEB qualifiers. Check details on the INO Result 2026, eligibility criteria, exam pattern, syllabus, important dates, and the selection process leading to the Orientation-cum-Selection Camp.
INBO 2026: The Indian National Biology Olympiad (INBO) 2026 serves as Stage 2 of the prestigious Biology Olympiad program, organized by the Homi Bhabha Centre for Science Education (HBCSE) for NSEB 2025 qualifiers. INBO Result 2026 has been released by HBCSE for Biology. Students can check their selection status for Group A and Group B categories. The result also includes cutoff marks and details for candidates shortlisted for the next Olympiad stage.
INBO Result 2026 (Out)
INBO 2026 Overview
Indian National Biology Olympiad (INBO) is the second stage of the olympiad organised for the candidates who have qualified the NSEB.
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INBO 2026 Overview |
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Authority Name |
Homi Bhabha Centre for Science Education (affiliated with the Tata Institute of Fundamental Research – HBCSE) |
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Full Name |
Indian National Biology Olympiad |
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Session/Term |
2025-2026 |
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Exam Stage |
Stage II (Follows NSEB, Stage I) |
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Conducting Body |
Homi Bhabha Centre for Science Education (HBCSE-TIFR) |
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Eligibility |
Only students who qualify the NSEB 2025 (Stage I) are eligible. |
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Exam Time |
1:30 PM – 3:30 PM IST |
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Duration |
2 hours (120 minutes) |
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Exam Mode |
Pen and Paper (Offline) |
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Question Type |
Mixed: Objective (MCQs) and Subjective (Short/Long Answer & Analytical Problems) |
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Total Marks |
100 Marks |
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Syllabus Focus |
Advanced Class 11 & 12 Biology (Olympiad Level) |
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Official Website |
https://secure.hbcse.tifr.res.in |
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Application Fee |
Rs. 300 |
Also Read: OCSC Excellence Camp 2026 By Olympiad Wallah
INBO 2026 Important Dates
Candidates who are interested in the Biology concepts and want to participate in the reputed national-level. They can track the INBO 2026 Important Dates for reference, provided in the table
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INBO 2026 Important Dates |
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Event |
Date |
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INBO Registration Opens |
January 6, 2026 |
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INBO Registration Closes |
17th January 2026 |
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February 1, 2026 |
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Admit Card Release |
2–3 weeks before exam (as per HBCSE) |
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Result Declaration |
March 6, 2026 |
INBO 2026 Registration Process
Candidates need to qualify for NSEB in the same academic year.
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First, clear the NSEB exam in the same academic year.
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Visit the HBCSE website to check when the INBO invite and registration details are announced (usually in December–January).
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Log in with your NSEB roll number or other required details.
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Fill out the INBO online form carefully with correct personal and academic information.
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Upload the required documents (like birth certificate, passport details, or school ID).
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Submit the form and save a copy or an acknowledgement for future use.
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Download the INBO admit card when it is released and check if all your details are correct.
Also Read: INBO Previous Year Question Paper
INBO 2026 Eligibility Criteria
Candidates who are interested in participating in the INBO 2026 Olympiad. Some eligibility requirements have been decided by the authority that allows the candidates to participate in the Biology Olympiad.
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Candidates should pass the NSEB (National Standard Examination for Biology).
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Indian nationals should have completed their studies in India.
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The eligibility criteria are a class 12th pass. Students who have passed the NSEB olympiad in classes 10th and 11th are eligible to apply.
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Candidates who have applied for the National Standard Examination in Junior Science (NSEJS) Olympiad in the same year. They are not eligible for the INBO.
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OCI students will not be selected for the INBO.
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Candidate must have an Indian citizenship and a passport.
INBO 2026 Syllabus
The INBO Syllabus has been designed to test the conceptual knowledge of the candidates. The topics are covered based on the class 11 and 12 Biology syllabus.
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Cell Biology & Biochemistry
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Genetics and Evolution
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Plant and Animal Physiology
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Ecology, Environment & Biodiversity
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Molecular Biology, Microbiology, and Biotechnology
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Anatomy, Reproduction, and Behaviour
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Data Interpretation, Analytical Reasoning in Biology
INBO 2026 Exam Pattern
INBO 2026 Exam Pattern comprises the details related to the test pattern, marking scheme, question format, and time.
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Candidates get 2 hours to solve INBO questions in the paper.
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INBO questions asked in the exam carry 100 marks.
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It includes the class 11 and 12 advanced Biology questions in objective and descriptive formats.
INBO 2026 FAQs
What are the eligibility criteria for the INBO 2026 exam?
A candidate must qualify the NSEB 2025 (Stage I) and be studying in Class 12 or lower, meeting all age/citizenship norms set by the HBCSE.
What is the exam date for the Indian National Biology Olympiad (INBO)?
The INBO 2026 (Stage II) was scheduled to be held on Sunday, February 1, 2026, typically a 2-hour offline theory exam.
What is the general exam pattern for the INBO?
The exam consists of both an Objective Section (MCQs) with negative marking and a Subjective Section for short/long answers. It tests problem-solving and analytical reasoning skills beyond school texts.
What syllabus should a candidate focus on for INBO preparation?
The focus should be on an advanced, in-depth understanding of the Class 11 and 12 CBSE/NCERT Biology syllabus. Core areas include Cell Biology, Genetics, and Plant & Animal Physiology.
What is the next stage after the INBO exam?
A successful candidate is selected for the Orientation-Cum-Selection Camp (OCSC-Biology), which is Stage III. Top performers from the OCSC are chosen for the International Biology Olympiad (IBO).
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