Thinking about a future in science? The IISER Exam 2025 is quickly becoming an important path for science enthusiasts seeking top-tier research careers in India. The IAT 2025 is officially scheduled for May 25, and applications have now closed, prompting aspirants to enter full-fledged preparation mode.
A seat at one of the seven prestigious IISERS offering BS-MS dual degrees, top-notch faculty, and research opportunities that open doors to global careers.
What is the IISER Aptitude Test (IAT) 2025?
If you're aiming for a career in science and research in India, the IISER Aptitude Test (IAT) is a key exam you need to know about. This national-level entrance test is your way into some of India’s top science education and research institutions—the Indian Institutes of Science Education and Research (IISERS).
The IAT assesses a student’s understanding of core science subjects and determines admission to seven IISER campuses: Berhampur, Bhopal, Kolkata, Mohali, Pune, Thiruvananthapuram, and Tirupati.
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IISER Exam 2025 Key Highlights
The IISER Aptitude Test (IAT) 2025 remains the primary gateway for admission into prestigious science programs across various IISER campuses.
The table below provides a quick snapshot of the most important details about the IISER Exam 2025.
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Latest Changes Introduced in the IISER Exam 2025
The IISER Aptitude Test (IAT) 2025 changes are designed to give students more choices and align with the growing interest in computational science, data analytics, and applied economics.
Here’s a closer look at the latest updates for IAT 2025:
New Academic Programs Added
1. BS-MS in Computational and Data Sciences – IISER Kolkata
For the first time, IISER Kolkata has launched a 5-year BS-MS dual degree in Computational and Data Sciences. This program is ideal for students interested in blending computer science with data analysis, modelling, and simulation.
2. BS in Economic and Statistical Sciences – IISER Tirupati
IISER Tirupati has introduced a new 4-year BS program focusing on Economics and Statistics. This course is designed to build analytical and quantitative skills for students aiming to work in economic research, policy-making, or analytics.
3. BTech Course – IISER Bhopal
In a major change, IAT 2025 will now also serve as a gateway to BTech admissions at IISER Bhopal. This addition signals a shift toward integrating core engineering disciplines with scientific research.
Eligibility Criteria Reinstated
The IISER admission body has reversed its earlier decision regarding the year of passing the Class 12 exam. Instead of following the newly proposed eligibility terms mentioned on January 30, 2025, officials have reverted to the criteria used in IAT 2024.
Increase in Seat Intake for 2025
With the launch of new programs, the total number of available seats through IAT 2025 has increased. Candidates can refer to the table below for the distribution of seats.
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IISER Exam 2025 Important Dates & Schedule
If you're planning to appear for the IISER Entrance Exam 2025, keeping track of key dates is just as important as preparing for the test itself.
Here’s a quick look at the updated timeline of the IISER Exam 2025.
Courses and Degrees Offered by IISER Exam 2025
From integrated BS-MS degrees to specialised BS and BTech programs, students now have more choices than ever before.
Here’s a breakdown of the academic programmes you can pursue at IISERS:
- Biological Sciences
- Chemical Sciences
- Earth & Climate Sciences/Earth & Environmental Sciences
- Economic Sciences
- Engineering Sciences (Chemical Engineering, Data Science & Engineering, Electrical Engineering & Computer Science)
- Geological Sciences
- Integrated & Interdisciplinary Sciences (Biological Sciences, Chemical Sciences, Mathematical Sciences, Physical Sciences)
- Mathematical Sciences
- Physical Sciences
Note: The four-year BS courses in Engineering Sciences and Economic Sciences are exclusively available at IISER Bhopal.
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Institutes Accepting IISER Exam 2025 Scores
The IISER institutes offer different combinations of BS-MS, BS, and BTech programmes, depending on the campus.
Here are the institutes that accepted IISER Aptitude Test scores in 2024:
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Overview of the BS-MS Dual Degree Programme at IISERS
The BS-MS dual degree programme offered by IISERS is designed for students passionate about science and research. Alongside this, IISER Bhopal offers a unique four-year BS degree in Engineering Sciences and Economics, catering to students who aim for more focused technical or analytical careers.
Here are the key features of the BS-MS Dual Degree Programme.
1. Duration & Structure
A five-year integrated programme that awards both a Bachelor's and Master’s degree in science.
2. Eligibility & Admission
Admission is solely through the IISER Aptitude Test (IAT). Students must have completed Class 12 with a background in science.
3. Academic Focus
The curriculum combines theoretical knowledge with research training. It’s interdisciplinary, covering physics, chemistry, biology, mathematics, and earth sciences, with scope for electives across emerging areas.
4. Research Opportunities
From early semesters, students get to work on research projects under the guidance of experienced faculty.
Modern Campus Life
IISER campuses are fully residential and well-equipped with labs, libraries, healthcare, sports, and recreational facilities, creating a balanced and supportive learning environment.
How to Fill the IISER Exam 2025 Application Form?
To apply for the IISER Aptitude Test, candidates must complete the online application process. Ensure that you fill in accurate information and keep all necessary documents ready.
Here’s a step-by-step process to fill out the IISER Exam 2025 Application Form.
Step 1: Register Online
Start by visiting the official IISER admissions website and clicking on the registration link. Enter your full name, a valid email ID, and your mobile number. You will receive login credentials to access the application portal.
Step 2: Fill in Personal Details
Log in using your credentials and complete the application form by providing your details, educational qualifications, board details, and other required information.
Step 3: Upload Required Documents
Upload scanned copies of your:
- Class 12 mark sheet
- Recent passport-size photograph
- Signature
Ensure the documents meet the prescribed format and size as mentioned in the guidelines.
Step 4: Application Fee Payment
After filling the form, candidates must pay the IISER exam 2025 fees online through net banking, credit/debit card, or UPI. The fee varies based on the candidate’s category:
- General/EWS/OBC: INR 2,000
- SC/ST/KM/Pwd: INR 1,000
Keep a copy of the fee receipt and submitted form for future reference.
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IISER Exam 2025 Eligibility Criteria
Before you start your application for the IISER exam, it’s important to understand the eligibility requirements set by the authorities. Whether you’re applying through the IAT or other admission channels, make sure you meet the criteria mentioned below.
1. Nationality Requirement
To apply through the IISER Aptitude Test 2025, you must be an Indian citizen or hold either a Person of Indian Origin (PIO) or Overseas Citizen of India (OCI) status. Foreign nationals (excluding PIOS and OCIS) cannot appear for IAT.
2. Educational Qualification
You must have completed your Class 12 (or equivalent) exam in either 2024 or 2025 from a recognised board under the Council of Boards of School Education in India (COBSE).
3. Subject Requirement
During your Class 12 or equivalent studies, you should have studied at least three of the following subjects:
- Physics
- Chemistry
- Mathematics
- Biology
4. Minimum Marks Criteria
Candidates from the General, OBC-NCL, and EWS categories need a minimum of 60% aggregate marks in Class 12, while SC, ST, and PWD candidates require at least 55%.
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IISER Exam Pattern 2025
Understanding the exam pattern is essential for effective preparation. The table below provides an overview of the IAT 2025 Exam Pattern.
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IISER Exam 2025 Syllabus
To perform well in the IISER Aptitude Test 2025, candidates must be clear about the subjects and chapters the exam will cover. The tables below provide a breakdown of the IISER exam 2025 syllabus and important topics covered.
Biology Syllabus
Chemistry Syllabus
Mathematics Syllabus
Physics Syllabus
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Smart Preparation Tips for Cracking the IISER Exam 2025
Preparing for IAT 2025 requires a well-planned approach since the exam tests not only your knowledge of Class 11 and 12 science topics but also your analytical and reasoning skills.
Here are some effective preparation tips to help you perform your best in the IISER 2025 exam:
1. Know the Syllabus Thoroughly
Before you begin, get complete clarity on the subjects and chapters covered in the IAT syllabus, primarily based on Class 11 and 12 topics from Biology, Chemistry, Mathematics, and Physics.
2. Create a Study Plan
Break your preparation into weekly and monthly goals. Based on your strengths and weaknesses, allocate fixed time slots for each subject.
3. Focus on Conceptual Understanding
IAT questions are designed to check how well you understand basic concepts. So instead of just memorising formulas or facts, aim to understand the ‘why’ and ‘how’ behind each topic.
4. Practice Regularly
Daily practice is key, especially in mathematics and Physics, where problem-solving is crucial. Use reference books and past year papers to solve a wide variety of questions.
5. Attempt Mock Tests
Take full-length mock tests under exam-like conditions. This will help you build your stamina, improve your time management, and highlight areas for improvement.
6. Don’t Neglect Mental and Physical Health
Maintain a balanced routine that includes regular breaks, physical activity, and adequate sleep. A healthy mind works more efficiently and retains information better.
IISER Exam 2025 Admit Card Download Process
The admit card for the IISER IAT 2025 is expected to be available on 15 May 2025. It contains important details, such as the candidate's name, roll number, exam centre address, and shift timings.
Below are the steps to download the IISER Admit Card 2025:
- Visit the official IISER Admissions website.
- Look for the ‘IISER Admit Card’ tab on the homepage.
- Click the link to access the login portal.
- Enter your login ID and password.
- Check the admit card and verify all the details.
- Download and print two copies for safety and reference in the future.
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IISER Exam 2025 City-Wise Test Centres
The IISER IAT 2025 is scheduled for May 25, 2025, and will be conducted as a computer-based test across various centres in India. The table below lists some of the cities where the IISER 2025 exam centres are located.
IISER Exam 2025 Answer Key
The answer key for the IISER exam 2025 will be made available on the same day as the exam. First, the exam authorities will release a provisional answer key, allowing candidates to compare their responses and estimate their scores.
If any candidate finds discrepancies or errors in the provisional key, they can raise objections within the given timeline.
IISER Exam 2025 Result Declaration
The results for the IISER IAT 2025 are expected to be announced in June 2025. Candidates can download their scorecards by logging in to the official IISER admissions portal using their registered credentials.
The IAT 2025 rank card is essential for participating in the counselling process. Only candidates with qualifying scores will be considered for admission through the counselling rounds held by participating IISERS.
IISER Exam 2025 Expected Cut-Off
The cut-off is reflected in the closing ranks, which are released after counselling registration is complete.
Candidates can refer to the table below, which highlights trends from previous years, to get an idea of what to expect.
The IISER Exam 2025 is a crucial step for aspiring science students seeking admission to India's top science institutes. With the exam scheduled for May 25, 2025, and the application process already closed, it’s essential to stay informed about eligibility, the syllabus, and the exam pattern. Keep an eye on the official updates and remain prepared for the rewarding path to IISER.
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