IISER Exam Pattern 2027 

The IISER Aptitude Test 2027, conducted by the Indian Institutes of Science Education and Research Joint Admission Committee (IISER-JAC), is a premier gateway for students seeking admission into prestigious BS, BS-MS dual degree programs, and specific engineering science pathways across premier institutes in India. Understanding the exam pattern is crucial for effective preparation and success in the test.

IISER 2027 Exam Pattern Overview

The IISER is structured as a single-stage, computer-based test (CBT) evaluating candidates across core science disciplines. The examination is conducted online in a single shift, featuring objective-type multiple-choice questions (MCQs). The total duration of the exam is three hours (180 minutes).

IISER 2027 Section-Wise Distribution and Marking Scheme

The question paper comprises 60 questions divided equally across four distinct sections: Physics, Chemistry, Mathematics, and Biology. Each section carries equal weightage.

All questions are objective and based on the Class XI and XII syllabus as per the rationalized NCERT curriculum.

Key Features Across the IISER 2027 Framework

Syllabus Highlights for IISER 2027 

The syllabus comprehensively covers core concepts primarily aligned with the NCERT Class 11 and Class 12 curricula:

• Physics: Covers mechanics, waves and oscillations, thermodynamics, electrostatics, current electricity, magnetism, optics, modern physics, and semiconductor electronics.
• Chemistry: Involves physical chemistry (thermodynamics, electrochemistry, solutions, chemical kinetics), inorganic chemistry (periodic table, coordination chemistry, chemical bonding), and organic chemistry (hydrocarbons, alcohols, carbonyl compounds, amines).
• Mathematics: Concepts include algebra, matrices and determinants, coordinate geometry, limits and continuity, differentiation, application of derivatives, integral calculus, vectors, and three-dimensional geometry.
• Biology: Foundational topics span diversity in the living world, structural organization in plants and animals, cell biology, plant physiology, human physiology, genetics, biotechnology, and ecology.

Preparation Strategy for IISER 2027

Preparation for the IISER Aptitude Test requires focusing heavily on conceptual depth, analytical reasoning, and application rather than simple rote memorization. Candidates should thoroughly study the NCERT textbooks, pay attention to cross-topic problem solving, and practice managing time efficiently across all four sections. Regular practice using timed full-length mock tests and previous years' question papers is essential to adapt to the computer-based format and pace.

Click Here For IISER 2027 Eligibility Criteria

IISER 2027 Exam Pattern FAQs

Q1. What is the format of the IISER 2027 exam?

Ans. The exam is conducted online as a Computer-Based Test (CBT) consisting of 60 objective multiple-choice questions totaling 240 marks, split evenly across Physics, Chemistry, Mathematics, and Biology over a duration of 3 hours.

Q2. Is negative marking applicable in the IISER Aptitude Test?

Ans. Yes, +4 marks are awarded for every correct answer, while -1 mark is deducted for every incorrect response. Unattempted questions receive 0 marks.

Q3. Are all four subjects compulsory to attempt?

Ans. While questions from all four subjects appear on the test paper, attempting every section is not strictly compulsory, though attempting all sections maximizes your overall scoring potential since every subject carries equal weight.

Q4. Can PCM or PCB students apply for IISER?

Ans. Yes, candidates who have studied at least three of the four core science subjects (Physics, Chemistry, Mathematics, and Biology) at the Class XII level are eligible, though utilizing knowledge across all four sections helps maximize scores.

Q5. What language options are available for the question paper?

Ans. The exam is provided in both English and Hindi, allowing candidates to select their preferred medium during registration.