IISER question paper for the academic session 2026-2027 will be released on the same day after the successful conduct of the examination.

IISER previous year question paper helps the candidate to get insight into the types of questions asked in the examination, the difficulty level of the exam, IISER exam pattern and other details. Candidates preparing for IISER must refer to the previous year’s question papers to gain a deeper understanding of the topics covered in Physics, Mathematics, Chemistry, and Biology subjects.

IISER 2026 is anticipated to be held in the third week of May 2026, tentatively.

Candidates can download the IISER previous year question paper from this page. Check out this SciAstra IISER exam page for all the information related to the IAT question paper PDF, exam dates, pattern and other details here.

IAT 2026 Exam Dates

Since IAT 2026 admission dates are yet to be announced by the exam officials, candidates can check out the previous year’s dates from here for reference:

IISER Entrance Exam Dates 2026

Event Date (Tentative)

IISER 2026 Exam Notification

Jan 25, 2026 – Jan 31, 2026

IISER Exam 2026 Registration Date

March 10, 2026 to April 15, 2026

IISER Admit Card 2026

May 15, 2026

IISER Exam 2026

May 25, 2026

IISER Provisional Answer Key 2026

May 25, 2026

IISER Exam Student Response Sheet 2026

May 29, 2026

IISER Final Answer Key 2026

June 24, 2026

IISER Result 2026

June 24, 2026

Topic-Wise Analysis from IISER Previous Year Papers

Based on the past few years’ trends:

Subject

High-Weightage Topics

Physics

Mechanics, Optics, Thermodynamics, Electrostatics

Chemistry

Organic Reactions, Chemical Bonding, Equilibrium

Mathematics

Calculus, Coordinate Geometry, Probability

Biology

Cell Biology, Genetics, Ecology, Human Physiology

Benefits of Solving IISER Previous Year Question Papers

Check out the reasons why a candidate must go through the IISER previous year question papers from here:

  1. Understand Exam Structure – Get familiar with section-wise weightage and time allocation.

  2. Identify Important Topics – Spot frequently repeated concepts and high-scoring areas.

  3. Improve Speed & Accuracy – Practice under timed conditions to enhance problem-solving skills.

  4. Boost Confidence – Familiarity with question types reduces exam-day anxiety.

  5. Evaluate Preparation Level– Self-assess strengths and weaknesses for better revision planning.