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Olympiad

NSEB

National Standard Examination in Biology

HBCSE/IAPT Stage-1 biology olympiad. 80 MCQs in 3 hours covering cell biology, genetics, plant & animal physiology, ecology, and evolution.

72 days to exam(నివేదిత)80 Qs216 మార్కులు180 నిమినెగటివ్: −1📅 తేదీలు & అప్‌డేట్స్📋 Full syllabus🎯 Expected cutoff🧠 Tricks & mnemonics📖 How to crack it🔁 Mistake Notebook
🎓 Preparing for NSEB? Get a free day-by-day plan to exam day. Rebuilt every morning around what you actually did — miss a day, nothing is lost.Build my plan →
~350 vacancies(indicative / typical)✓ Verify on Indian Association of Physics Teachers (IAPT) ↗

Updated 2 Sept 2026 ·Vacancy counts change every cycle — always confirm the exact number in the latest official notification before applying.

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Sourced

Source: official exam authority notification · refreshed weekly. How this works →

Free NSEB preparation on Shishya

Take expert-curated mocks, practise previous year papers, and Ask Shishya when you're stuck — verified by students who cleared the same path. All free, no credit card. Sign in with Google to begin.

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✦ Try a NSEB question — free, no signup

Kingdom Protista includes organisms that are:

Tap an option to check your answer.

డయగ్నోస్టిక్‌తో ప్రారంభించండి

మీరు ఎక్కడ ఉన్నారో చూడటానికి syllabus అంతటా 10 ప్రశ్నలు.

Shishya ని అడగండి →

అధికారిక ఫలితం వచ్చినప్పుడు ఒక ఈమెయిల్, ఇంకేమీ కాదు.

🧩 Build your own mock — pick exact topics → · every mock readable in हिंदी + 12 languages inside the test

NSEB eligibility

Verified against the official notification. Source ↗ · last reconciled 2026-05.

Education
Currently studying in Class 11 or Class 12 in a recognised Indian school.
Attempts
One attempt per cycle.
Nationality
Indian citizen, OCI, or studying in Indian schools.

NSEB paper analysis — what actually got asked

Topic-by-topic weightage averaged across 2022-2024 papers. Use this to decide where to invest study hours, not where to skim. Source ↗ · verified 2026-05.

Cell + Molecular Biology

50/240 marks avg

  • Cell structure + biomolecules + genetics + biotech

    ~50 marks(21%)

Plant Biology

50/240 marks avg

  • Anatomy + physiology + ecology + evolution

    ~50 marks(21%)

Animal Biology

60/240 marks avg

  • Anatomy + physiology + human systems + reproduction

    ~60 marks(25%)

Ecology + Behaviour + Evolution

40/240 marks avg

  • Population + community + behaviour + Darwinian evolution

    ~40 marks(17%)

Biosystematics + Practicals

40/240 marks avg

  • Taxonomy + classification + applied biology

    ~40 marks(17%)

Takeaways for prep planning

  • NSEB material extends far beyond NCERT — Campbell Biology + Vander's Physiology + Plant Physiology by Taiz & Zeiger are the standard references.
  • Olympiad biology rewards depth, not just NEET-style breadth. Specifically prepare experimental + analytical questions.
  • The IBO international round includes practical exams — Stage 3+ candidates should practise dissections and lab techniques.

NSEB — Frequently asked questions

Is Shishya free for NSEB preparation?
Yes. Every NSEB mock test, previous-year paper, and study tool on Shishya is completely free — no subscription and no credit card. Shishya is community-verified, so questions are checked by students and educators who have cleared the same exam.
How many NSEB practice questions does Shishya have?
Shishya has 112 student-verified NSEB practice questions, available as adaptive mock tests with a worked solution for every question.
Are NSEB previous year question papers available?
Yes. Shishya has free NSEB previous-year papers covering 2021–2025 (5 years). Each is a timed practice set with full solutions.
How long is the NSEB exam?
The National Standard Examination in Biology (NSEB) runs for 3 hours. Shishya's mock tests mirror this duration so you can practise under real exam-time pressure.

గత సంవత్సరాల పేపర్లు

92 అన్ని సంవత్సరాల్లో ప్రశ్నలు

కొన్ని సంవత్సరాలకు పూర్తి పేపర్ కాదు, ఆ పేపర్‌లోని కొన్ని ప్రశ్నలు మాత్రమే ఉన్నాయి — ఎన్ని ఉన్నాయో ప్రతి కార్డు చూపుతుంది.

Mock tests

నా అన్ని ప్రయత్నాలు →

Take any mock in your preferred language — use the language picker inside the mock to switch (Hindi, Telugu, Tamil, Bengali, and 15 more).

New to NSEB? Start small:a 25-question subject test first — 4 in 5 aspirants finish these; full mocks after your first win.Pick a subject test ↓

Practice by subject & topic

Full-length subject tests below — 25 questions each, real exam format, instant scoring. Want to drill a single topic? Every topic has its own 10-question test in the syllabus.

  • Biology

    112 Qs

🎯 Build my own mock

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మీ ర్యాంక్

ఈ పరీక్ష తీసుకున్న అందరితో పోల్చితే

లీడర్‌బోర్డ్‌లో మీరు ఎక్కడ ఉన్నారో చూడటానికి మాక్ తీసుకోండి.

Students

1

Mocks taken

1

Average score

20%

Top score

20%

What can I get from NSEB?

Mock-score → expected rank → likely outcome. Use the mocks below to find your current band, then plan how many marks you need to climb.

AI-curated from historic cut-off patterns. Always verify with the latest official notification before making decisions.

News & timeline

See older updates →

తాజా వార్తలు

ముఖ్యమైన తేదీలు

  1. NSEB 2026 centre registration starts

    గడిచిపోయింది

    Sat, 1 Aug, 2026

    Schools and junior colleges register as exam centres

  2. NSEB 2026 centre registration ends

    గడిచిపోయింది

    Thu, 20 Aug, 2026

  3. NSEB 2026 student enrolment starts

    గడిచిపోయింది

    Fri, 21 Aug, 2026

    Students can register through schools or individually via iapt.org.in

  4. NSEB 2026 student enrolment deadline

    3 రోజులు మిగిలాయి

    Mon, 14 Sept, 2026

    Registration fee: ₹300 per student per subject

  5. NSEB 2026 admit card release (expected)

    50 రోజులు మిగిలాయి

    Sat, 31 Oct, 2026

    Based on previous cycle; IAPT typically releases admit cards in late October

  6. 🏅NSEB 2026 exam (Stage 1)

    72 రోజులు మిగిలాయి

    Sun, 22 Nov, 2026

    Sunday, 2:30 PM – 4:30 PM; OMR-based offline exam

  7. NSEB 2026 result declaration (expected)

    103 రోజులు మిగిలాయి

    Wed, 23 Dec, 2026

    Based on previous cycle; results usually announced in late December

  8. 🏅INBO 2027 exam (Stage 2, expected)

    143 రోజులు మిగిలాయి

    Mon, 1 Feb, 2027

    Indian National Biology Olympiad for NSEB qualifiers; typically held in late January/early February

Syllabus

ఏదైనా టాపిక్‌పై ట్యాప్ చేయండి — నోట్స్ + 10 ప్రశ్నల టాపిక్ టెస్ట్

Biology