IISER Aptitude Test 2025 Exam Pattern: Check Marking Scheme, Total Marks, Chapter Wise Weightage, Duration

Updated By Himani Daryani on 21 May, 2025 16:41

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IISER Aptitude Test Exam Pattern 2025

IISER Aptitude Test Exam Pattern 2025 has been released! IISER Aptitude Test 2025will be held on May 25, 2025, thus, students are advised to check IISER 2025 exam pattern thoroughly. Understanding IAT exam pattern 2025 is important if you want to effectively prepare for the exam. According to the prescribed exam pattern for IISER aptitude test 2025, the exam will be computer-based. The subject knowledge of IAT 2025 applicants will be examined using multiple choice questions (MCQs) from the examination. Mainly, the IISER exam pattern 2025 is for students who apply through the State and Central Boards Channel.

Preparing for IISER Aptitude Test 2025? You can access IAT 2025 Mock Test here!

Read on to check complete details about IISER exam pattern 2025!

Highlights of IISER Aptitude Test Exam Pattern 2025

IAT 2025 exam pattern highlights have been provided in the table below - 

Particulars

IISER Entrance Exam Pattern 2025 Details

Type of Questions

Multiple Choice of Questions

Mode of Exam

Computer-Based Test (CBT)

Total Number of Sections

4

Name of Sections

Biology, Chemistry, Mathematics, and Physics

Total Number of Questions

60

Exam Duration

180 minutes

Medium of question paper

English and Hindi

Marking Scheme

4 marks for every right answer

-1 for every incorrect answer

 0 for every unanswered question

  • IISER exam pattern 2025 has IISER Admission Test has Multiple Choice Questions (MCQ).

  • The medium of language in the entrance exam is English and Hindi as per IISER 2025 exam pattern.

  • There are a total of 60 questions asked in the entrance exam with a total of 240 marks.

  • The total time duration of IISER Aptitude Test is 180 minutes as per IISER exam pattern 2025.

  • IISER 2025 exam pattern is divided into four sections Biology, Chemistry, Mathematics, and Physics with equal weightage.

  • In IISER exam pattern 2025, 4 marks are awarded for every correct answer and -1 is deducted for every incorrect answer.

Colleges Accepting Exam IISER Aptitude Test :

IISER Aptitude Test Exam Pattern 2025 Details

IISER exam pattern 2025 question distribution has been discussed in the table below - 

Subject

No. of Questions

Marks

Duration

Physics

15

60

3 hours

Chemistry

15

60

Biology

15

60

Maths

15

60

Total

60

240

Similar Exams :

IISER Aptitude Test Exam Pattern 2025 Marking Scheme

IAT exam pattern 2025 marking scheme has been discussed in the table below - 

Type of Answers

Marking

Correct response

+4

Incorrect response

-1

No response

0

IISER Aptitude Test Previous Year Papers

In order to understand IISER entrance exam pattern 2025, students must practice the IISER previous year papers. It is recommended that they should solve IAT full paper tests after reviewing the entire syllabus and having a thorough understanding of each topic in all chapters. Practice IISER aptitude test previous years papers and online mock tests in a timed manner, as if solving a real paper in 3 hours. The following tables contain the IISER aptitude test previous year question papers and sample/model test papers:

Download IISER Aptitude Test (IAT) Question Paper here!

IISER Aptitude test (English)
IISER Aptitude test (Hindi)

Download IISER Aptitude Test (IAT) Engg Model Paper here!

IISER Aptitude test (Engg) Model Paper 1IISER Aptitude test (Engg) Model Paper 2 (Hindi)
IISER Aptitude test (Engg) Model Paper 2

Want to know more about IISER Aptitude Test

FAQs about IISER Aptitude Test Exam Pattern

What is the mode of IISER Aptitude Test 2025?

The IISER Aptitude Test 2025 will be conducted only in the Computer Based Test (CBT) mode.

Is there a negative marking for IISER Aptitude Test 2025?

Yes, there is a negative marking for incorrect answers. According to the latest IISER Aptitude Test 2025 exam pattern, one mark will be deducted for every incorrect answer. 

What type of questions are asked in IISER Aptitude Test (IAT) 2025?

Questions will be of multiple choice type with only one correct answer.

What is the medium of IISER Aptitude Test (IAT) 2025?

The Computer Based Test (CBT) test will be available in English and Hindi.

What is IISER Aptitude Test (IAT) 2025 exam pattern?

IISER Aptitude Test (IAT) 2025 will be conducted as a Computer Based Test (CBT). The IAT question paper will consist of 60 questions.  Each of the four subjects such as Mathematics, Physics, Chemistry, and Biology will have fifteen questions. The duration of the exam is 3 hours (180 minutes). The type of questions asked in the exam is MCQs. 4 marks will be given for each right response and 1 mark will be deducted for each wrong response. IAT 2025 is conducted for 240 marks in total. 

 

 

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