IISER 2026 is a national-level entrance examination conducted for admission to the five-year BS-MS dual degree programmes offered by the Indian Institutes of Science Education and Research (IISERs). The examination is conducted through IISER Aptitude Test (IAT), which evaluates candidates on their understanding of Physics, Chemistry, Mathematics, and Biology. Students aspiring to build careers in scientific research, higher education, and innovation can secure admission to premier research institutes through IISER 2026.
Table of Contents
| Particulars | Details |
|---|---|
| Exam Name | IISER Aptitude Test (IAT) 2026 |
| Conducting Body | IISER Admission Committee |
| IISER Exam Level | National Level |
| IISER hExam Frequency | Once a Year |
| Mode of Examination | Computer-Based Test |
| Courses Offered | BS-MS Dual Degree Programs |
| Duration | 3 Hours |
| Medium | English |
| Number of Questions | 60 Questions |
| Admission Basis | IAT Score |
| Official Website | iiseradmission.in |
The official schedule for IISER 2026 is expected to be announced in the first quarter of 2026. Candidates should regularly monitor the admission portal for updates.
| Events | Dates |
|---|---|
| IISER 2026 Notification Release | 5 March 2026 |
| IISER 2026 Application Form Start Date | 5 March 2026 |
| IISER 2026 Application Form Last Date | 13 April 2026 |
| IISER 2026 Application Correction Window | 16 April 2026 to 18 April 2026 |
| IISER 2026 Admit Card Release | 24 May 2026 |
| IISER Aptitude Test (IAT) 2026 | 7 June 2026 |
| IISER 2026 Provisional Answer Key | 7 June 2026 (after examination) |
| IISER 2026 Final Answer Key | June 2026 (Expected) |
| IISER 2026 Result Declaration | June 2026 (Expected) |
| IISER 2026 Counselling Registration | June 2026 (Expected) |
IISER 2026 notification is expected to be released through the official admission portal. The notification will contain complete information regarding eligibility criteria, registration process, application fee, exam pattern, syllabus, seat matrix, reservation policy, result declaration, and counselling schedule. Candidates are advised to read the information brochure carefully before submitting the application form.
Candidates must satisfy all eligibility requirements prescribed by the admission authority before applying.
Educational Qualification
Minimum Marks Requirement
Nationality
Age Limit
IISER application process is conducted completely online. The process includes.
Step 1: Registration: Visit the official admission portal and create a candidate account using a valid email ID and mobile number.
Step 2: Fill Application Form: Enter personal details, educational qualifications, communication details, and examination preferences.
Step 3: Upload Documents: Upload scanned copies of- Passport-size photograph, Signature, Category certificate (if applicable), PwD certificate (if applicable)
Step 4: Payment of Fee: Pay the prescribed application fee through online payment modes.
Step 5: Final Submission: Review all entered details carefully and submit the application form.
Step 6: Print Confirmation Page: Download and print the completed application form for future reference.
| Category | Expected Fee |
|---|---|
| General/OBC-NCL/EWS | Rs 2,000 |
| SC/ST/PwD | Rs 1,000 |
| Foreign Nationals | As per official notification |
Note: The fee structure is subject to revision in the official notification.
IISER Aptitude Test evaluates conceptual understanding and analytical skills in science subjects.
| Particulars | Details |
|---|---|
| Mode of Exam | Computer-Based Test |
| Duration | 180 Minutes |
| Total Questions | 60 |
| Subjects | Physics, Chemistry, Mathematics, Biology |
| Questions per Subject | 15 |
| Type of Questions | Multiple Choice Questions |
| Total Marks | 240 |
| Medium | English |
| Response Type | Marks |
|---|---|
| Correct Answer | +4 |
| Incorrect Answer | -1 |
| Unattempted | 0 |
IISER Aptitude Test (IAT) 2026 syllabus is primarily based on the NCERT curriculum of Classes 11 and 12. The examination assesses candidates' conceptual understanding, analytical thinking, and application of scientific principles across Physics, Chemistry, Mathematics, and Biology.
Physics
| Topic | Description |
|---|---|
| Mechanics | Covers motion, force, work, energy, power, momentum, and rotational dynamics. Students should focus on applying physical laws to solve numerical and conceptual problems. |
| Laws of Motion | Includes Newton's laws, friction, circular motion, and free-body diagrams. Understanding the relationship between force and motion is essential. |
| Gravitation | Deals with universal gravitation, planetary motion, satellite motion, and gravitational potential energy. Numerical problem-solving is emphasized. |
| Thermodynamics | Covers heat, temperature, laws of thermodynamics, kinetic theory of gases, and thermodynamic processes. Questions often test conceptual understanding and applications. |
| Electrostatics | Focuses on electric charges, electric fields, potential, capacitance, and Coulomb's law. Candidates should understand field interactions and calculations. |
| Current Electricity | Includes electric current, resistance, Ohm's law, circuits, Kirchhoff's laws, and electrical measurements. Numerical questions are common from this section. |
| Magnetism | Covers magnetic fields, magnetic effects of current, electromagnetic induction, and magnetic properties of matter. Conceptual clarity is important. |
| Optics | Includes reflection, refraction, optical instruments, interference, diffraction, and wave optics. Students should understand ray diagrams and optical phenomena. |
| Modern Physics | Covers atomic structure, photoelectric effect, nuclear physics, semiconductors, and quantum concepts. It is often considered a high-scoring area. |
Chemistry
| Topic | Description |
|---|---|
| Atomic Structure | Covers atomic models, quantum numbers, electronic configuration, and atomic spectra. Understanding the evolution of atomic theories is important. |
| Chemical Bonding | Includes ionic bonding, covalent bonding, molecular orbital theory, hybridization, and intermolecular forces. Questions test conceptual understanding of molecular structures. |
| States of Matter | Deals with gases, liquids, solids, gas laws, and kinetic molecular theory. Numerical and theoretical questions are commonly asked. |
| Thermodynamics | Covers energy changes, enthalpy, entropy, Gibbs free energy, and spontaneity of reactions. Candidates should understand both concepts and calculations. |
| Equilibrium | Includes chemical and ionic equilibrium, Le Chatelier's principle, acids, bases, and buffer solutions. Numerical applications are frequently tested. |
| Organic Chemistry | Covers nomenclature, reaction mechanisms, hydrocarbons, alcohols, aldehydes, ketones, carboxylic acids, and biomolecules. Strong conceptual understanding is required. |
| Electrochemistry | Includes electrochemical cells, electrode potential, Nernst equation, electrolysis, and conductance. Numerical problem-solving is important. |
| Coordination Compounds | Focuses on ligands, coordination numbers, nomenclature, bonding theories, and applications of coordination chemistry. |
| Biomolecules | Covers carbohydrates, proteins, enzymes, vitamins, nucleic acids, and their biological significance. Questions are generally concept-based. |
Mathematics
| Topic | Description |
|---|---|
| Sets and Functions | Covers sets, relations, functions, domain, range, inverse functions, and compositions. These concepts form the foundation for advanced mathematics. |
| Algebra | Includes complex numbers, quadratic equations, sequences, series, permutations, combinations, and binomial theorem. Regular practice is essential. |
| Matrices and Determinants | Covers matrix operations, determinants, inverse matrices, and solving systems of linear equations. Questions often involve calculations and applications. |
| Trigonometry | Includes trigonometric ratios, identities, equations, inverse trigonometric functions, and properties of triangles. Accuracy in formula application is crucial. |
| Coordinate Geometry | Covers straight lines, circles, conic sections, parabola, ellipse, and hyperbola. Students should focus on geometric interpretation and problem-solving. |
| Calculus | Includes limits, continuity, differentiation, integration, differential equations, and applications of derivatives and integrals. It is one of the most important sections. |
| Probability | Covers basic probability principles, conditional probability, Bayes' theorem, and random variables. Conceptual understanding is important for solving application-based questions. |
| Statistics | Includes measures of central tendency, dispersion, variance, standard deviation, and data interpretation. Questions generally test analytical skills. |
| Vectors | Covers vector algebra, dot product, cross product, vector equations, and three-dimensional geometry. Visualization and calculation skills are required. |
Biology
| Topic | Description |
|---|---|
| Cell Structure | Covers cell organelles, cell theory, membrane structure, cell division, and cellular functions. It forms the foundation of biological sciences. |
| Genetics | Includes Mendelian inheritance, chromosomal theory, DNA replication, genetic disorders, and molecular genetics. Questions often test conceptual clarity and problem-solving. |
| Evolution | Covers theories of evolution, natural selection, speciation, and evidence supporting evolutionary processes. Understanding biological diversity is important. |
| Human Physiology | Includes digestive, respiratory, circulatory, nervous, endocrine, and excretory systems. Functional understanding of body systems is emphasized. |
| Plant Physiology | Covers photosynthesis, respiration, mineral nutrition, plant growth, and transport in plants. Concept-based questions are commonly asked. |
| Ecology | Includes ecosystems, biodiversity, environmental issues, population dynamics, and ecological interactions. Current environmental relevance makes this topic important. |
| Biotechnology | Covers genetic engineering, recombinant DNA technology, bioprocessing, and modern applications of biotechnology in medicine and agriculture. |
| Reproduction | Includes sexual and asexual reproduction, reproductive health, human reproduction, and developmental biology. Questions are generally NCERT-based. |
| Diversity in Living Organisms | Covers classification systems, taxonomy, plant and animal kingdoms, and characteristics of various organisms. A strong grasp of classification principles is required. |
IISER 2026 admit card is expected to be released approximately one week before the examination. Candidates must carry a printed copy of the admit card along with a valid photo identity proof to the examination centre.
Steps to Download IISER Admit Card
The provisional IISER answer key is expected to be released shortly after the examination. Candidates can compare their responses with the official answer key and estimate their probable scores before result declaration.
Steps to Download Answer Key
Note: Candidates may also be allowed to challenge the provisional answer key within the specified period.
IISER 2026 result is likely to be announced in June 2026. Candidates can access their scorecards through the admission portal.
Steps to Check Result
IISER cutoff varies every year depending on factors such as:
| Category | Expected Cutoff Marks |
|---|---|
| General | 120–145 |
| OBC-NCL | 100–125 |
| EWS | 110–135 |
| SC | 75–95 |
| ST | 60–85 |
| PwD | 50–75 |
Note: The actual cutoff will be announced during the admission process.
IISER cutoff is released in the form of closing ranks after each round of counselling. The cutoff varies every year depending on the number of applicants, exam difficulty level, seat availability, and category-wise reservations. Candidates securing ranks within the closing rank range have a higher chance of receiving admission offers during the seat allotment process.
IISER 2025 Previous Year Closing Rank Cutoff
| Category | Closing Rank |
|---|---|
| General (GEN) | 5,086 |
| OBC-NCL | 2,903 |
| EWS | 1,074 |
| SC | 1,195 |
| ST | 533 |
| GEN-PwD | 85,884 |
| OBC-NCL-PwD | 29,183 |
| SC-PwD | 9,247 |
Previous Year IISER Cutoff Marks (Approximate)
| Category | Cutoff Marks Range |
|---|---|
| General | 120–150 |
| OBC-NCL | 110–130 |
| EWS | 115–135 |
| SC | 80–100 |
| ST | 70–90 |
| PwD | 50–75 |
| Subject | Recommended Books |
|---|---|
| Physics | Concepts of Physics by H.C. Verma |
| Physics | Understanding Physics by D.C. Pandey |
| Chemistry | NCERT Chemistry Classes 11 & 12 |
| Chemistry | Physical Chemistry by O.P. Tandon |
| Mathematics | IIT Mathematics by M.L. Khanna |
| Mathematics | Objective Mathematics by R.D. Sharma |
| Biology | NCERT Biology Classes 11 & 12 |
| Biology | Trueman's Biology |
IISER 2026 seat allotment process will commence after the declaration of the IISER Aptitude Test (IAT) 2026 results. Candidates who qualify for admission will be required to participate in the centralized counselling process conducted through the IISER admission portal. During counselling, candidates must register, fill their institute preferences, and participate in multiple rounds of seat allocation
IISERs offer research-oriented undergraduate programmes designed to develop strong foundations in science, interdisciplinary learning, and research. Admission to these programmes is primarily through the IISER Aptitude Test (IAT).
| Programme | Duration | Offered By |
|---|---|---|
| BS-MS Dual Degree Programme | 5 Years | All IISERs |
| BS in Economic Sciences | 4 Years | IISER Bhopal |
| BS in Economic and Statistical Sciences | 4 Years | IISER Tirupati |
| BS-MS in Computational and Data Sciences | 5 Years | IISER Kolkata |
| BS-MS in Geological and Earth Sciences | 5 Years | IISER Mohali |
| BTech in Chemical Engineering | 4 Years | IISER Bhopal |
| BTech in Data Science and Engineering | 4 Years | IISER Bhopal |
| BTech in Electrical Engineering and Computer Science | 4 Years | IISER Bhopal |
| BTech in Electronics and Communication Engineering | 4 Years | IISER Bhopal |
| BTech in Computer Science and Engineering | 4 Years | IISER Bhopal |
Qualifying IISER 2026 can open the gateway to some of India's most prestigious science education and research institutions. After the declaration of results and successful counselling participation, candidates gain admission to rigorous BS-MS programs that provide strong academic foundations and research exposure. Graduates often progress toward advanced studies, research fellowships, doctoral programs, scientific innovation, and careers in academia, industry, and national research laboratories. A strong IISER performance can therefore become the starting point of a long-term scientific and research-oriented career.
Ques: Is IISER admission possible without appearing for JEE Advanced or NEET?
Ans: Yes. Admission is primarily conducted through IISER Aptitude Test (IAT). Candidates can secure admission solely based on their IAT performance if they satisfy all eligibility conditions.
Ques: Can a PCM student apply for IISER if Biology was not studied in Class 12?
Ans: Yes. Students from the PCM background are eligible. The IAT includes Biology questions, so candidates should prepare the subject accordingly.
Ques: Is there negative marking in IISER?
Ans: Yes. One mark is generally deducted for every incorrect answer while four marks are awarded for each correct response.
Ques: Can candidates choose only one IISER during counselling?
Ans: No. Candidates can generally fill multiple institute preferences during the counselling and seat allotment process.
Ques: How many students appear for IISER every year?
Ans: Tens of thousands of candidates compete annually for a limited number of seats, making IISER admission highly competitive.
Ques: Can a drop-year student apply for IISER?
Ans: Yes. Candidates meeting the year-of-passing criteria mentioned in the official notification can apply.
Ques: What rank is considered safe for admission to top IISER campuses?
Ans: A safe rank varies annually based on seat availability and competition. Higher ranks generally improve admission chances in preferred campuses.
Ques: What happens after qualifying IISER?
Ans: Qualified candidates participate in counselling, institute preference filling, seat allotment, document verification, and fee payment before joining their allotted IISER campus.
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