Government
Deemed University · Est. 1909
IISc Bengaluru
Bengaluru, Karnataka
Indian Institute of Science
- Indicative fee / yr
- ₹30K – ₹2.5L
- Entrance
- JEE Main, JEE Advanced +3
- Science
- Engineering
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Science & Research entrance exam
IISER IAT
IISER Aptitude TestEntrance for the BS-MS dual degree at the IISERs and certain other research-focused science programmes.
- Conducted by
- Indian Institutes of Science Education and Research
- Level
- Undergraduate
- Frequency
- Once a year
- Typically held
- June
- Mode
- Computer-based test
- Duration
- 3 hours
Who it's for
Science students drawn to research careers in physics, chemistry, biology, mathematics or earth sciences.
- BS-MS at IISERs
- BS programmes at participating institutes
Typical eligibility
- Class 12 with science subjects and the notified minimum marks
- Passed Class 12 in the current or previous year
Exam pattern
Duration
3 hours
Marking
+4 for a correct answer, −1 for an incorrect one
| Section | Details |
|---|---|
| Biology | Objective questions |
| Chemistry | Objective questions |
| Mathematics | Objective questions |
| Physics | Objective questions |
Patterns are revised from time to time. Confirm the current pattern in the official information bulletin.
Subjects
- Biology
- Chemistry
- Mathematics
- Physics
How to prepare
- 01
Revise all four sciences — the paper is balanced across them
- 02
Class 11–12 NCERT depth is usually sufficient; focus on understanding
Typical preparation timeline
Class 12
Board-aligned prep
Four-subject NCERT coverage
Mar–Jun
IAT practice
Previous papers and mocks
Colleges that accept IISER IAT
From our directory. Cut-offs vary by year, category and programme.
IISER IAT guidance
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