IISER Aptitude Test
| Acronym | IAT |
|---|---|
| Type | Electronic assessment (CBT mode) |
| Administrator | IISER Joint Admission Committee (IISER-JAC Chairman) |
| Skills tested | Physics, Chemistry, Mathematics, Biology |
| Purpose | Admission to undergraduate science programs (BS Four-year and BS-MS Dual Degree Five-year programs) in 7 IISERs, BS Four-year program in IISc, and BS Four-year program of MSE in IIT Madras only. |
| Year started | 2010 |
| Duration | 3 hours |
| Score range | -60 to +240 |
| Offered | once in a year |
| Restrictions on attempts | Maximum three attempts in consecutive years, with no age limit |
| Regions | India |
| Languages | English and Hindi only |
| Annual number of test takers |
Around 2 lakh (2025)(unverified) |
| Prerequisites | Candidates must have taken at least three subjects among Biology, Chemistry, Mathematics and Physics during their Class XII (or equivalent) examination. |
| Fee |
|
| Website | https://www.iiseradmission.in/ |
IISER Aptitude Test (IAT) is an Indian computer-based test for admission to the various undergraduate programs offered by the seven IISERs, along with IISc Bangalore and IIT Madras.[3][4][5][6]
It is the only examination to get admission into the,
- 5-year BS-MS Dual Degree Programs of the IISERs,
- 4-year BS Degree Program in Economic Sciences of IISER Bhopal,
- 4-year BS Degree Program in Economic and Statistical Sciences of IISER Tirupati, and
- 4-year BS Degree Program of IIT Madras.
- 4-year B.Tech Program (Chemical Engineering, Data Science & Engineering, Electrical Engineering & Computer Science) of IISER Bhopal
It also serves as one of the channels to get admission into the 4-year BS (Research) Degree Program of IISc Bangalore.
IAT for IISERs
From 2024 onwards, admissions to IISERs are exclusively through the IISER Aptitude Test (IAT).[7] There is no JEE Advanced channel or KVPY channel for admission in IISER anymore.
Test Pattern
IAT is conducted as a computer based test in the centers across India.
IAT consists of 60 questions: 15 questions each from Biology, Chemistry, Mathematics, and Physics.
Total time for answering the test is 3 hours. Questions are of multiple choice type with only one correct answer.
- Each correct answer is awarded 4 marks.
- Each incorrect answer leads to the deduction of 1 mark.
- Unanswered questions are awarded 0 mark.
- Therefore, maximum marks awarded in IAT are 240.
The total marks obtained by a candidate out of 240 is considered for preparing the Rank List.
Not every candidate appearing in IAT is awarded a rank. Rank cut-off is announced at an appropriate time. Further, getting a rank does not guarantee offer/admission to an IISER.[8]
Syllabus
The syllabus broadly follows the NCERT syllabus for classes 11 and 12. For 2025 exam, it will follow the rationalized syllabus of 2024-25.[9]
| Biology | Chemistry | Mathematics | Physics |
|---|---|---|---|
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References
- ^ "IAT | Notices". Archived from the original on 2023-09-22. Retrieved 2024-01-29.
- ^ "IISER exam".
- ^ "IISER Aptitude Test (IAT)". Archived from the original on 2023-08-07. Retrieved 2023-08-07.
- ^ "Eligibility Criteria". Archived from the original on 2023-08-07. Retrieved 2023-08-07.
- ^ "IISc UG - Information Brochure". Archived from the original on 2023-03-11. Retrieved 2023-11-28.
- ^ "Archived copy" (PDF). Archived (PDF) from the original on 2023-10-30. Retrieved 2023-11-28.
{{cite web}}: CS1 maint: archived copy as title (link) - ^ "Eligibility Criteria". IAT 2024. Retrieved 2024-03-21.
- ^ "IISER Aptitude Test (IAT)". IAT 2024. Retrieved 2024-03-30.
- ^ a b "Syllabus 2025" (PDF). www.iiseradmission.in. Archived from the original (PDF) on 2025-03-12. Retrieved 2025-03-28.