IISER entrance exam 2025 is scheduled to be held on May 25, 2025 at various exam centres across the nation. Candidates appearing for the exam must check out the last-minute preparation strategy tips and IISER 2025 exam safe score details in this Shiksha article.
IISER 2025 Last Minute Preparation Strategy and Safe Score
With just days to go before the IISER Aptitude Test (IAT) 2025, aspirants across the country are intensifying their preparations for one of the most competitive science entrance exams in India. The Indian Institutes of Science Education and Research (IISER) offer prestigious BS-MS dual degree programs through the IAT, and success in this exam can open doors to cutting-edge research opportunities and academic excellence.
IAT 2025 exam will be conducted on May 25, 2025, in online mode for the duration of three hours from 9 AM to 12 PM. The exam officials will put to test candidates' domain knowledge, analytical and practical skills. Here’s a quick look at the last-minute preparation strategy and insights into the safe score range for securing admission in IISERs this year.
Last-Minute Preparation Strategy for IISER 2025
With limited time left, candidates must now focus on revision, accuracy, and confidence-building. Here’s a breakdown of key strategies:
1. Revise Core Concepts, Not Everything
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Focus on NCERT books for Class 11 and 12 – especially Physics, Chemistry, and Biology.
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For Mathematics, practice important formulae and frequently asked problem types.
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Avoid learning new topics at this stage; concentrate on consolidating what you already know.
2. Solve Previous Year Papers & Mock Tests
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Practice at least one full-length mock test daily to build speed and stamina.
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Analyze your mistakes and focus on weak areas during revision.
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Solve IAT previous year papers (2020–2024) to understand question patterns.
3. Time Management During the Exam
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Aim to spend no more than 45 minutes per section (Physics, Chemistry, Maths, Biology).
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Start with your strongest subject to gain confidence and save time.
4. Focus on Accuracy Over Attempt
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Remember, IAT carries negative marking (-0.25 per incorrect answer).
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Avoid guesswork unless you can eliminate at least two options.
5. Stay Calm and Maintain a Healthy Routine
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Prioritize sleep, hydration, and light exercise to maintain focus.
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Avoid burnout—short, effective study sessions are more productive than long, stressful hours.
IISER Entrance Exam 2025: Good Attempts and Safe Score
Check out the number of good attempts for each subject, the time spent on each section and the safe score details from below:
| Subject | Questions | Maximum Marks | Attempt Questions | Time Spent | Safe Score |
|---|---|---|---|---|---|
| Mathematics | 15 Questions | 60 | 12 Questions | 55 minutes | 44 |
| Physics | 15 Questions | 60 | 12 Questions | 50 minutes | 47 |
| Chemistry | 15 Questions | 60 | 13 Questions | 40 minutes | 47 |
| Biology | 15 Questions | 60 | 13 Questions | 25 minutes | 50 |
| Buffer | Recheck | 10 minutes | |||
| Total | 60 Questions | 240 Marks | 48 Questions Correct 4 Questions Wrong |
180 minutes | 188 |
Read More: IISER 2025 Shiksha Poll: How Much Time Are Students Spending Daily for IISER 2025 Preparation?
IISER Pune cutoff 2024 has been released across BS and BS-MS specialisations. The last-round seat allotment for IISER Pune conclued at 1023 for all BS-MS Specialisations under the General AI category. Comparing to IISER Pune cutoff 2022, the cutoff has been improved with an increase in the ranks in 2024.
Further, IISER Pune SC AI category cutoff 2024 has been concluded at 340 for all BS-MS specialisations. Candidates seeking admission to IISER Pune can check out the cutoffs given below:
| Course | 2022 | 2024 |
|---|---|---|
| B.S. in Biological Science + M.S. in Biological Science | 319 | 1023 |
| B.S. in Chemical Sciences + M.S. in Chemical Sciences | 319 | 1023 |
| B.S. in Physical Sciences + M.S. in Physical Sciences | 319 | 1023 |
| B.S. in Mathematical Sciences + M.S. in Mathematical Sciences | 319 | 1023 |
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Check out the last minute preparation tips on IISER entrance exam from here:
1. Focus on Key Topics
Prioritize the most scoring and frequently asked topics from each subject:
Maths: Calculus, Algebra, Trigonometry, Coordinate Geometry
Physics: Mechanics, Electricity & Magnetism, Modern Physics
Chemistry: Physical Chemistry (especially mole concept, chemical kinetics), Organic reaction mechanisms, Periodic Table trends
Biology: Cell biology, Genetics, Evolution, Ecology, Human Physiology
2. Revise NCERTs Thoroughly
NCERT books (especially for Biology and Chemistry) are crucial. Stick to them in the final stretch.
Re-read summaries and solved examples.
3. Practice Previous Year Papers & Mock Tests
Take at least 1 full-length mock test daily in exam-like conditions.
Analyze your mistakes and avoid repeating them.
Time management is key—learn which questions to skip.
4. Use Short Notes & Formula Sheets
Go through your short notes and formula sheets daily.
Avoid opening new books or resources now.
5. Time Allocation Strategy
During the exam:
Target your stronger sections first to boost confidence.
Keep an eye on the clock—don't get stuck on any one question.
6. Stay Calm & Take Care of Yourself
Get proper sleep (7–8 hours), especially before the exam.
Stay hydrated and eat light, nutritious food.
Don't panic—trust your preparation.