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

IISER Exam Pattern 2025

IISER Aptitude Test 2025 will be held in June, 2025. Thus, candidates are advised to check the IISER 2025 exam pattern, which will be released. to prepare thoroughly for the exam. To become familiar with the exam paper, aspirants must carefully read the IISER Exam Pattern 2025. According to the IISER 2025 exam pattern, the exam will be a computerised test with multiple-choice questions. The question paper will include four sections with 15 questions from Physics, Chemistry, Mathematics  and Biology. The IISER Aptitude Test 2025 marking scheme gives +4 marks for correct answers, -1 for incorrect answers, and 0 for unattended questions. It is totalled at 240 marks, i.e.15 x 4 for each subject. The exam’s duration is 3 hours. The IISER Entrance Exam pattern for 2025 is almost similar as previous year. The subject knowledge of IAT 2025 applicants will be assessed in this exam.

The IISER exam pattern 2025 is for students who apply through the State and Central Boards Channel. The IISER exam is administered in an offline format. Before beginning preparation for the IISER aptitude test, candidates should review the IISER 2025 exam pattern. The IISER exam pattern 2025 includes the marking scheme, question types, maximum marks, and other details.

Candidates can check details about IISER exam pattern 2025 on this page.

Highlights of IISER Exam Pattern 2025

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

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

IISER Exam Pattern 2025 Details

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

IISER Exam Pattern 2025 Marking Scheme

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

IISER Aptitude Test Previous Year Papers

In order to understand the IISER entrance exam pattern 2025, candidates must practice the IISER previous year papers. It is recommended that candidates 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!

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