IISER Aptitude Test
From Wikipedia, the free encyclopedia
| Acronym | IAT |
|---|---|
| Type | Electronic assessment (CBT mode) |
| Administrator | IISER Joint Admission Committee (IISER-JAC Chairman) |
| Skills tested | Physics Chemistry Biology and Mathematics. |
| 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 MS and Chemistry 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 |
|
| 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/ |
The IISER Aptitude Test (IAT) is a computer-based entrance examination in India for admission to undergraduate programs offered by the seven Indian Institutes of Science Education and Research (IISERs), along with Indian Institute of Science (IISc) and Indian Institute of Technology Madras. The exam has an acceptance rate of roughly 1-1.5%, making it one of the most competitive exams in the country, comparable to IIT JEE in terms of selectivity. It serves as a gateway to India’s top research institutions, particularly the IISERs and IISc, which are known for their strong emphasis on fundamental science, rigorous academics, and a research-driven environment focused on building future scientists and innovators.[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
- 5 Year BS-MS program at IACS Kolkata (from 2026)
It also serves as one of the channels to get admission into the 4-year BS (Research) Degree Program of IISc Bangalore.