IISER Exam Pattern 2025 - Total Marks, Number of Questions, Negative Marking
The IISER Aptitude Test (IAT) is a gateway for students seeking admission to the prestigious Indian Institutes of Science Education and Research. Renowned for fostering scientific excellence, the exam evaluates candidates’ knowledge and analytical skills in Mathematics, Physics, Chemistry, and Biology. Let’s explore the IISER 2025 exam pattern in detail, including the exam mode, questions type, subject-wise number of questions, total marks, exam duration and negative marking.
IISER 2025 Exam Pattern
Given below is the IISER (IAT) exam pattern for 2025 :
| IISER Aptitude Test 2025 |
Paper Pattern |
| Exam Mode |
Online (Computer-Based Test) |
| Questions Type |
Multiple Choice Objective Type |
| IISER Total Questions |
60 Questions |
| IISER Total Marks |
240 |
| IISER Exam Duration |
3 hours |
| Negative Marking |
-1 for each wrong answer |
IISER 2025 Paper Pattern
Total Number of Questions : The total number of questions in IISER aptitude test is 60. There will be 15 questions asked from each subject - Physics, Chemistry, Math, Biology in the IAT paper.
Total Marks and Cutoff : IISER aptitude test total marks is 240. IISER aptitude test marking scheme : Physics - 60 marks, Chemistry - 60 marks, Math - 60 marks, Biology - 60 marks.
Negative Marking : There is negative marking in the IISER aptitude test. 1 mark will be deducted for each wrong answer in the IAT paper.
IISER 2025 Subject-wise Questions and Marks Distribution
IISER subject-wise number of questions and marks distribution :
| Subject |
Number of Questions |
Total Marks |
| Physics |
15 |
60 |
| Chemistry |
15 |
60 |
| Math |
15 |
60 |
| Biology |
15 |
60 |
| Total |
60 |
240 |
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