The IISER IAT 2026 syllabus is based on the NCERT Class 11 and 12 curriculum in Biology, Chemistry, Mathematics, and Physics. Since the IISER Aptitude Test (IAT) 2026 was held on 7 June 2026, this page serves as a reference for the pattern and for future aspirants. The official syllabus is published at iiseradmission.in.
IISER IAT 2026 Syllabus
What does the IISER IAT 2026 syllabus cover?
The syllabus covers four science subjects with equal weightage, and questions test conceptual application rather than rote learning. Basically, NCERT Class 11-12 forms the base across Biology, Chemistry, Mathematics, and Physics.
IISER IAT 2026 Official Syllabus – Check the official syllabus and brochure at iiseradmission.in.
IISER IAT 2026 Section Weightage
| Section | Questions | Marks |
|---|---|---|
| Biology | 15 | 60 |
| Chemistry | 15 | 60 |
| Mathematics | 15 | 60 |
| Physics | 15 | 60 |
| Total | 60 | 240 |
Subject-wise Topics
- Physics: mechanics, thermodynamics, waves, electromagnetism, optics, modern physics.
- Chemistry: physical, organic, and inorganic chemistry (Class 11-12).
- Biology: cell biology, genetics, physiology, ecology, biotechnology.
- Mathematics: algebra, calculus, trigonometry, coordinate geometry, probability.
IISER IAT 2026 Exam Pattern
- Mode: Computer-Based Test (CBT)
- Duration: 3 hours
- Questions: 60 MCQs (15 per section)
- Total Marks: 240
- Marking: +4 correct; -1 incorrect
Preparation Tips
- Master NCERT Class 11-12 for all four subjects.
- Practise application-based and prior IAT-level questions.
- Manage negative marking carefully by avoiding blind guesses.
- Solve IISER IAT previous year question papers in 3-hour timed mode.
Recommended Books for IISER IAT 2026
Along with NCERT, these IAT-specific books help with practice. (These are affiliate links.)
- IISER IAT Aptitude Test 2026-27 (Set of 5 Books)
- SciAstra IISER (IAT) PYQs 2017-2025 – Fully Solved
- SciAstra IAT Mock Test Series 2026 (20+ Tests)
- PREP4IISER IAT Chapterwise PYQ, Mock Test & Question Bank
IISER Aptitude Test (IAT) 2026
IAT is the IISER Aptitude Test, conducted by the seven IISERs for admission to BS-MS, BS, and BTech programmes. After preparing from the syllabus, candidates download the admit card, and after the exam they check the answer key and result.
IISER IAT Syllabus – An Overview
| Aspect | Information |
|---|---|
| Name of Exam | IISER IAT 2026 |
| Conducting Body | IISERs (jointly) |
| Subjects | Biology, Chemistry, Mathematics, Physics |
| Based On | NCERT Class 11 and 12 |
| Questions / Marks | 60 MCQs / 240 marks |
| Marking | +4 correct; -1 incorrect |
| Official Website | iiseradmission.in |
| Similar Exams | Science Entrance Exams |
IISER IAT Syllabus FAQs
The IISER IAT 2026 syllabus is based on the NCERT Class 11 and 12 curriculum across Biology, Chemistry, Mathematics, and Physics.
IAT 2026 is a 3-hour CBT with 60 MCQs across four sections of 15 questions each, for 240 marks; +4 for correct and -1 for incorrect.
NCERT Class 11 and 12 textbooks are the core resource, supported by IAT-specific guides such as the IISER IAT Set of 5 books, SciAstra IAT PYQs and mock tests, and PREP4IISER.
If you have any questions about the IISER IAT 2026 syllabus, then please ask in the comments below. And if you found this page useful, then please share it!
![](https://admission.aglasem.com/wp-content/uploads/2026/06/300x250-Nurturing-approved-1.png")
