Dashboard · Exams · 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.
Updated 16 Aug 2026 ·Vacancy counts change every cycle — always confirm the exact number in the latest official notification before applying.
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Source: official exam authority notification · refreshed weekly. How this works →
Free NSEB preparation on Shishya
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Kingdom-level ClassificationKingdom Protista includes organisms that are:
Tap an option to check your answer.
Start with a diagnostic
10 questions across the syllabus to see where you stand.
Verified against the official notification. Source ↗ · last reconciled 2026-05.
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.
50/240 marks avg
Cell structure + biomolecules + genetics + biotech
50/240 marks avg
Anatomy + physiology + ecology + evolution
60/240 marks avg
Anatomy + physiology + human systems + reproduction
40/240 marks avg
Population + community + behaviour + Darwinian evolution
40/240 marks avg
Taxonomy + classification + applied biology
2025
19 questions
Take paper →2024
18 questions
Take paper →2023
19 questions
Take paper →2022
18 questions
Take paper →2021
18 questions
Take paper →Take any mock in your preferred language — use the language picker inside the mock to switch (Hindi, Telugu, Tamil, Bengali, and 15 more).
NSEB — Quick Practice
FULL20 questions · 180 min
Start mock →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 QsTell Shishya exactly what to test you on — topics, size, difficulty — and get a fresh mock in seconds. Leave the box blank and we'll target your weakest topics.
Take a mock to see where you stand on the leaderboard.
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.
IBO team contention
90–100% · Post-based exam (no numeric rank)
Student enrolment for NSEB 2026 has commenced from 21 August 2026 and will remain open until 14 September 2026. The registration fee is ₹300 per student, payable online through the official IAPT portal.
IAPT has confirmed the NSEB 2026 examination will be conducted on Sunday, 22 November 2026, from 2:30 PM to 4:30 PM. This is the first stage of India's Biology Olympiad programme leading to INBO and IBO.
The Indian Association of Physics Teachers (IAPT) has started centre registration for NSEB 2026 from 1 August 2026. Schools and junior colleges can register as examination centres through the official IAPT website until 20 August 2026.
Tap any topic for its study notes + a 10-question topic test
Diversity of Living Organisms
Classification systems, taxonomic hierarchy, three domains and five kingdoms.
Structural Organization in Plants and Animals
Morphology of flowering plants, plant anatomy and animal tissues with frog/cockroach as examples.
Cell — Structure and Function
Cell theory, prokaryote vs eukaryote, organelles, cell cycle, mitosis and meiosis.
Plant Physiology
Transport, mineral nutrition, photosynthesis, respiration, growth and development in plants.
Human Physiology
Digestion, breathing, body fluids, excretion, locomotion, neural and chemical coordination.
OCSC probability zone
82–90% · Post-based exam (no numeric rank)
Strong INBO contenders
70–82% · Post-based exam (no numeric rank)
INBO qualification range
55–70% · Post-based exam (no numeric rank)
Near cut-off range
35–55% · Post-based exam (no numeric rank)
Below qualifying threshold
0–35% · Post-based exam (no numeric rank)
AI-curated from historic cut-off patterns. Always verify with the latest official notification before making decisions.
The IAPT declared NSE results for the 2025-26 cycle on 23 December 2025. Toppers of NSEB have qualified for INBO 2026 (Stage 2), scheduled for February 2026.
NSEB 2026 centre registration starts
passedSat, 1 Aug, 2026
Schools and junior colleges register as exam centres
NSEB 2026 centre registration ends
passedThu, 20 Aug, 2026
NSEB 2026 student enrolment starts
passedFri, 21 Aug, 2026
Students can register through schools or individually via iapt.org.in
NSEB 2026 student enrolment deadline
19 days awayMon, 14 Sept, 2026
Registration fee: ₹300 per student per subject
NSEB 2026 admit card release (expected)
66 days awaySat, 31 Oct, 2026
Based on previous cycle; IAPT typically releases admit cards in late October
🏅NSEB 2026 exam (Stage 1)
88 days awaySun, 22 Nov, 2026
Sunday, 2:30 PM – 4:30 PM; OMR-based offline exam
NSEB 2026 result declaration (expected)
119 days awayWed, 23 Dec, 2026
Based on previous cycle; results usually announced in late December
🏅INBO 2027 exam (Stage 2, expected)
159 days awayMon, 1 Feb, 2027
Indian National Biology Olympiad for NSEB qualifiers; typically held in late January/early February