IISER 2021 Question Paper & Answer Key; Download PDF
IISER Aptitude Test (IAT) 2021 was conducted on September 17, 2021, in computer-based mode for candidates seeking admission through the State and Central Boards (SCB) channel. It was held for admission to the BS-MS Dual Degree programs offered by various IISER campuses across India. Due to the pandemic-related academic disruptions and revised admission schedule, the exam was conducted later than usual.
IISER 2021 Question Paper & Answer Key PDF
| Question Paper PDF | Answer Key PDF |
|---|---|
IISER 2021 IAT Question Paper and Answer Key PDF (Sep 17, 2021) |
Download PDF |
The following resources can help candidates analyze the exam and practice with actual IAT-level questions. The memory-based question paper compiled after the exam provides a good understanding of the topics and concepts tested in IAT 2021.
IISER 2021 Exam Pattern
IISER Aptitude Test (IAT) 2021 was conducted in Computer-Based Test (CBT) mode and consisted of questions from Physics, Chemistry, Mathematics, and Biology. The exam tested conceptual understanding and analytical reasoning based on the Class 11 and 12 syllabus.
| Particulars | Details |
|---|---|
| Exam Name | IISER Aptitude Test (IAT) 2021 |
| Mode of Examination | Computer-Based Test (CBT) |
| Duration | 180 Minutes (3 Hours) |
| Subjects | Physics, Chemistry, Mathematics, Biology |
| Total Questions | 60 |
| Questions per Subject | 15 |
| Question Type | Multiple Choice Questions (MCQs) |
| Medium | English |
| Maximum Marks | 180 |
| Marking Scheme | +3 for Correct Answer |
| Negative Marking | -1 for Incorrect Answer |
Subject-Wise Distribution
| Subject | Questions | Maximum Marks |
|---|---|---|
| Physics | 15 | 45 |
| Chemistry | 15 | 45 |
| Mathematics | 15 | 45 |
| Biology | 15 | 45 |
| Total | 60 | 180 |
Subject-Wise Analysis of IISER 2021
IAT 2021 was widely regarded as one of the toughest IISER exams in recent years. Many students reported that the paper demanded strong conceptual understanding and analytical reasoning.
| Subject | Difficulty Level | Major Topics |
|---|---|---|
| Physics | Moderate-Difficult | Mechanics, Electricity, Modern Physics |
| Chemistry | Moderate | Organic, Physical Chemistry |
| Mathematics | Difficult | Calculus, Algebra, Coordinate Geometry |
| Biology | Easy-Moderate | Genetics, Ecology, Physiology |
Preparation Tips by Topper
Adarsh secured AIR 1 in the IISER Aptitude Test (IAT) 2021. His success reflects the importance of strong conceptual understanding, regular practice, and effective revision.
- Build a solid foundation using NCERT textbooks.
- Focus on understanding concepts rather than memorizing facts.
- Solve previous year IISER question papers regularly.
- Attempt mock tests to improve speed and accuracy.
- Revise important formulas and concepts frequently.
- Identify weak areas and work on them consistently.
- Maintain balanced preparation across all four subjects.
IISER 2021 Result
IISER Aptitude Test 2021 result was announced in October 2021 through the official admission portal. Candidates could check their scores, ranks, and qualification status using their login credentials.
The scorecard generally included:
- Candidate Marks
- Category Rank
- Overall Rank
- Qualification Status
- Seat Allocation Eligibility
The result formed the basis for the subsequent admission and counselling process.
IISER 2021 Counselling Process
Candidates who qualified in IAT 2021 were invited to participate in the admission process through IISER admission portal.
The counselling process involved:
- Registration and confirmation of participation
- Filling preferred IISER campuses
- Seat allotment based on rank and category
- Document verification
- Acceptance of allotted seat
Multiple rounds of seat allocation were conducted to fill available seats across participating IISER campuses.
IISER FAQs
Ques: How many IISER previous year papers should I practice?
Ans: Candidates should ideally solve at least 5–7 years of IISER question papers along with mock tests for effective preparation.
Ques: What happens after IISER result is declared?
Ans: Qualified candidates are invited to participate in the counselling process, where they submit preferences for institutes and programs.
Ques: How are seats allotted during IISER counselling?
Ans: Seat allotment is based on the candidate's rank, category, institute preferences, and seat availability.
Ques: What documents are required during IISER admission process?
Ans: Candidates generally need Class 10 and 12 mark sheets, category certificate (if applicable), photo ID proof, scorecard, and other documents specified by the admission authority.
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