IISER Aptitude Test Previous Year Question Papers: The IISER Aptitude Test 2026 is the sole entrance examination for admission to various undergraduate programs at the Indian Institutes of Science Education and Research (IISERs). This exam enables candidates to enroll in 5-Year BS-MS Dual Degree, 4-Year BS, and B.Tech degree programs offered by IISERs across India. The examination and subsequent admission process are computer-based and conducted under the jurisdiction of IISER Berhampur. IISER Aptitude Test 2026 aims to select bright students passionate about interdisciplinary sciences and research.
Also read: IISER Aptitude Test 2026: Complete Guide for Admission and Eligibility
IISER Aptitude Test Previous Year Question Papers
- Admission is based entirely on the performance in the IISER Aptitude Test 2026 and subsequent online counselling rounds.
- Candidates receive admission offers depending on their IAT ranks, category, seat availability, and preferred academic programs. Candidates may accept or reject seat offers online.
- Payment of the Seat Acceptance Fee is mandatory to confirm admission.
- The IISER Aptitude Test 2026 process is fully online, and the final admission is confirmed after document verification at the allotted IISER.
- IISER Aptitude Test 2026 will be a computer-based test.
- Test duration: 180 minutes.
- Number of questions: 60 (15 each from Biology, Chemistry, Mathematics, and Physics).
- Questions are multiple-choice with only one correct answer.
- Marking scheme: +4 marks for a correct answer, -1 mark for an incorrect answer, 0 for an unanswered question
- Here is the list of Test Papers and their codes:
| Year | Hindi | English |
|---|---|---|
| 2017 | Click Here | Click Here |
| 2018 | — | Click Here |
| 2019 | Click Here | Click Here |
| 2021 | Click Here | Click Here |
| 2022 | Click Here | Click Here |
| 2023 | Click Here | Click Here |
| 2024 | Click Here | Click Here |
| 2025 | Click Here | Click Here |
IISER Aptitude Test: Syllabus
The syllabus of the IISER Aptitude Test is given below in details
| Subjects | XI Topics | XII Topics |
|---|---|---|
| Physics | Units & Measurements, Kinematics, Laws of Motion, Work Energy Power, Rotation, Gravitation, Properties of Matter, Thermodynamics, Oscillations & Waves | Electrostatics, Current Electricity, Magnetism, EMI & AC, Optics, Dual Nature, Atoms & Nuclei, Semiconductors |
| Chemistry | Mole Concept, Atomic Structure, Periodic Table, Bonding, States of Matter, Thermodynamics, Equilibrium, Redox, Hydrogen & s-block, Organic Basics, Environmental Chemistry | Solid State, Solutions, Electrochemistry, Kinetics, Surface Chemistry, Metallurgy, p/d/f-block, Coordination Compounds, Organic Chemistry, Biomolecules, Polymers |
| Biology | Diversity, Structural Organization, Cell Biology, Plant Physiology, Human Physiology | Reproduction, Genetics & Evolution, Human Welfare, Biotechnology, Ecology |
| Mathematics | Sets, Relations, Trigonometry, Complex Numbers, Quadratics, Sequences, Coordinate Geometry, Limits, Statistics & Probability | Functions, Inverse Trigonometry, Matrices, Calculus, Differential Equations, Vectors, 3D Geometry, Probability |
Key Dates
| Event | Date |
|---|---|
| Application Start Date | 5th March 2026 |
| Application Closing Date | 13th April 2026 |
| Correction Window | 16th April 2026 to 18th April 2026 |
| Hall Ticket Release | 24th May 2026 |
| IISER Aptitude Test (IAT) Date | 7th June 2026 |
| Answer Key Display | 7th June 2026 |
| Student Response Form Upload | 9th June 2026 |
| Objection Filing Opens | 9th June 2026 |
| Objection Filing Closes | 13th June 2026 |
| Document Upload Window | 13th June 2026 to 21st June 2026 |
| Last Date for Document Upload | 21st June 2026 |
| Result Declaration | To be announced on official website |
| Start of Counselling Process | To be announced on official website |
Important Links
| IISER Official Website |
| Official IIISER Aptitude Test 2026 Information Brochure |
| IISER Online Application Portal |
For more news and updates, click here.
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