The IISER Aptitude Test (IAT) is an entrance examination conducted by the Indian Institutes of Science Education and Research (IISERs) for admission into its BS-MS dual degree programs. IISERs are autonomous institutions under the Ministry of Education, Government of India, focusing on world-class science education and research.
The exam is primarily meant for students who have completed or are appearing in their Class 12 exams with a strong inclination toward science and research careers. It is a gateway for admission into prestigious IISER campuses located across India.
Eligibility Criteria for IISER 2025
To appear for the IISER Aptitude Test 2025, candidates must meet the following eligibility conditions:
Educational Qualification: Candidates must have passed or be appearing in the final exam of Class 12 (or equivalent) in the science stream in 2024 or 2025.
Subjects Required: Physics, Chemistry, and Mathematics/Biology (depending on the stream chosen).
Minimum Marks: At least 60% marks (55% for SC/ST/PwD) in aggregate or equivalent grade in Class 12.
Nationality: Indian nationals, PIOs, and OCIs are eligible to apply.
Important Dates for IISER Exam 2025 (Tentative)
| Event | Expected Date |
|---|---|
| Application Form Release | March 2025 |
| Last Date to Apply | April 2025 |
| Admit Card Release | May 2025 |
| IISER Aptitude Test 2025 | June 2025 |
| Result Announcement | July 2025 |
| Counseling and Seat Allocation | July–August 2025 |
IISER Exam Pattern 2025
The IISER Aptitude Test is a computer-based test (CBT) and consists of multiple-choice questions (MCQs). Here are the key features:
Duration: 3 hours
Total Subjects: Four (Physics, Chemistry, Mathematics, Biology)
Total Questions: 60 questions (15 from each subject)
Marking Scheme:
+3 marks for a correct answer
-1 mark for an incorrect answer
Medium of Exam: English
Candidates can attempt questions from all four subjects, though the weightage for evaluation may depend on the stream and preferences selected during application.
IISER 2025 Syllabus Highlights
The syllabus for IISER 2025 is primarily based on the NCERT curriculum of Classes 11 and 12. Here’s a brief overview:
Physics
Kinematics, Laws of Motion
Work, Energy, and Power
Thermodynamics
Optics and Modern Physics
Chemistry
Chemical Bonding and Molecular Structure
Thermodynamics
Equilibrium
Organic Chemistry: Basic Principles
Mathematics
Sets, Relations, and Functions
Calculus
Vectors and 3D Geometry
Probability and Statistics
Biology
Cell Structure and Function
Genetics and Evolution
Ecology and Environment
Human Physiology
How to Apply for IISER Exam 2025 (Step-by-Step)
Visit the Official Portal (IISER Admissions)
Register with your email ID and mobile number.
Fill the Application Form with personal, academic, and contact details.
Upload Documents like passport-size photo, signature, and mark sheets.
Choose Exam Centres and preferred subject stream.
Pay the Application Fee through the available online payment methods.
Submit and Take a Printout of the final confirmation page for future reference.
Preparation Tips for IISER Exam 2025
Understand the Syllabus: Stick to NCERT books and revise all key concepts thoroughly.
Create a Study Plan: Allocate time for each subject and take regular mock tests.
Solve Previous Papers: This helps in understanding the pattern and types of questions.
Time Management: Practice full-length tests to manage time effectively during the exam.
Focus on Weak Areas: Identify and improve your problem areas through targeted practice.
Revision is Key: Keep the last 30 days for revision and mock practice.
FAQ for iiser exam date 2025
Q1. When will the IISER exam date 2025 be announced?
The official IISER exam date 2025 is expected to be released in March 2025 along with the admission notification.
Q2. Who can apply for the IISER Aptitude Test 2025?
Students from the science stream who have passed or are appearing in Class 12 in 2024 or 2025 are eligible, provided they meet the minimum mark criteria.
Q3. Is IISER admission only through the Aptitude Test?
No, IISER also admits students via other channels such as JEE Advanced and KVPY (if continued), but IAT remains the primary route.
Q4. Can I apply if I studied Biology instead of Mathematics?
Yes, students can choose Biology as their subject preference during application, but should review the eligibility criteria of individual IISERs.
Q5. How competitive is the IISER exam?
It is moderately competitive. A strong grasp of Class 11 and 12 NCERT topics, along with regular practice, significantly boosts the chances of selection.
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