IISER Aptitude Test


IISERs conduct IISER Aptitude Test under the State and Central Boards Channel (SCB) channel for admissions to 5-year BS-MS Degree programs of Indian Institutes of Science Education and Research and 4-year BS programs at IISER Bhopal. Students applying through the SCB channel have to appear in the IISER Aptitude Test which is conducted at various centers across the country.

Exam NameIISER Aptitude Test
Also Known AsIAT
Exam CategoryUndergraduate
Exam LevelNational
Exam ModeOnline (Computer based test)
Conducted byIndian Institutes of Science Education and Research

UPDATE (July 18, 2022): Answer Keys for IISER Aptitude Test are available now.

UPDATE (June 23, 2022): Admit Cards for IAT 2022 will be available from June 26, 2022 (3 PM).

UPDATE (June 15, 2022): Application correction window for IAT 2022 will be open from June 17 (11 AM) to June 18 (5 PM).

UPDATE (May 25, 2022): IISER Admissions 2022 Applications are open.

UPDATE (May 12, 2022): Official Mock Test for IISER Aptitude Test has been released.

UPDATE (Apr 25, 2022): IAT Applications will be opening soon.

UPDATE (Apr 24, 2022): IAT 2022 exam date has been revised.




  • The exam will be a computer-based test (CBT) of 3 hours duration.
  • All the questions will be Multiple Choice Questions (MCQ) i.e. each question will have four choices, only one being the correct choice.
  • The exam will have a total of 60 questions with 15 questions each from Biology, Chemistry, Mathematics, and Physics subjects.
  • Candidates will be awarded 3 marks for each correct answer while 0.75 marks will be deducted for each incorrect response.
  • The medium of the paper will be English and Hindi.

No. of Questions:

SubjectNo. of MCQTotal Marks





June 12, 2022 July 3, 2022



02:00 PM – 05:00 PM


    • Students who have passed (10+2) level with science stream in 2021 or 2022 with marks equal or above the cut-off percentage in their respective boards.
    • Class XII Performance criteria: Candidates need to obtain a minimum of 60% marks (GEN/EWS/OBC-NCL) or 55% marks (SC/ST/PwD) in their Class XII examination.


  • A candidate who has been admitted earlier to any of the IISERs, or who previously accepted a seat in any of the IISERs but did not join, or whose admission to any of the IISERs was cancelled after joining, is not eligible.


IISER Syllabus for Mathematics

  1. Application of Derivatives
  2. Applications of Integrals
  3. Binomial Theorem
  4. Complex Numbers and Quadratic Equations
  5. Conic Sections
  6. Continuity and Differentiability
  7. Determinants
  8. Differential Equations
  9. Integrals
  10. Introduction to Three Dimensional Geometry
  11. Inverse Trigonometric Functions
  12. Limits and Derivatives
  13. Linear Inequalities
  14. Linear Programming
  15. Mathematical Reasoning
  16. Matrices
  17. Permutations and Combinations
  18. Principle of Mathematical Induction
  19. Probability
  20. Relations and Functions
  21. Sequences and Series
  22. Sets
  23. Statistics
  24. Straight Lines
  25. Three-dimensional Geometry
  26. Trigonometric Functions
  27. Vectors

IISER Syllabus for Physics

  1. Work, Energy and Power
  2. Waves
  3. Thermodynamics
  4. Properties of Bulk Matter
  5. Physical World and Measurement
  6. Oscillations
  7. Optics
  8. Nuclei
  9. Motion of Systems of Particles and Rigid Body
  10. Magnetic Effect of Current and Magnetism
  11. Laws of Motion
  12. Kinematics
  13. Gravitation
  14. Electrostatics
  15. Electronic Devices
  16. Electromagnetic Waves
  17. Electromagnetic Induction
  18. Dual Nature of Radiation and Matter
  19. Current Electricity
  20. Communication Systems
  21. Behavior of Perfect Gas and Kinetic Energy
  22. Atoms
  23. Alternating Current

IISER Syllabus for Chemistry

  1. Alcohols, Phenols and Ethers
  2. Aldehydes, Ketones and Carboxylic Acids
  3. Biomolecules
  4. Chemical Bonding and Molecular Structure
  5. Chemical Kinetics
  6. Chemistry in Everyday Life
  7. Classification of Elements and Periodicity in Properties
  8. Coordination Compounds
  9. Electrochemistry
  10. Environmental Chemistry
  11. Equilibrium
  12. General Principles and Processes of Isolation of Elements
  13. Haloalkanes and Haloarenes
  14. Hydrocarbons
  15. Hydrogen
  16. Organic Chemistry – Some Basic Principles and Techniques
  17. Organic Compounds Containing Nitrogen
  18. Polymers
  19. Redox Reactions
  20. Solutions
  21. Some Basic Concept Of Chemistry
  22. States of Matter
  23. Structure of Atom
  24. Surface Chemistry
  25. The D– & F-block Elements
  26. The P-block Elements
  27. The P-block Elements
  28. The S-block Elements
  29. The Solid State
  30. Thermodynamics

IISER Syllabus for Biology

  1. Biology and Human Welfare
  2. Biotechnology and its Application
  3. Cell Structure and Function
  4. Diversity in the Living World
  5. Ecology and Environment
  6. Genetics and Evolution
  7. Human Physiology
  8. Plant Physiology
  9. Reproduction
  10. Structural Organization in Animals and Plants


  • An official mock test is made available to the candidates appearing for IAT.
  • Candidates can take the Mock Test to understand the pattern of the computer-based test and make themselves familiar with the interface.
  • The mock test is for practice purposes only.





See previous year Question Papers and Answers here.


IAT 2022 Fee is as follows:

GEN, EWS and OBC (Non-Creamy) Candidates₹2000
SC, ST, KM and PwD Candidates₹1000
Foreign NationalsUSD 100



  • The registrations for IISER Aptitude Test 2022 examination will begin from April 25, 2022 May 4, 2022 May 25, 2022.
  • The last date to register is May 20, 2022 May 29, 2022 June 15, 2022.
  • NEW: Refer to IISER Application Form for detailed Application Procedure.



  • Interested candidates need to visit the IISER Admission website and register with a valid email address.
  • Fill in the basic details and upload a self photograph in the registration form.
  • Enter the subject-wise marks in the prescribed form (name of the subject, marks obtained out of maximum marks).
  • Pay the application fees online.
  • Download a copy of the application for future reference.


  • Candidates will be provided a facility to make corrections in their application form particulars.
  • It is a one-time facility and is extended to the candidates to avoid any hardship to them.
  • Candidates will be able to correct the data filled in the application form including Photo ID, Marksheet, Category certificate, and IISER preferences.
  • UPDATE (June 15, 2022): Application correction window for IAT 2022 will be open from June 17 (11 AM) to June 18 (5 PM).


  • Candidates can select any five preferred test cities for the IAT examination.
  • However, the test city allocation will be subject to availability.



  • The hall ticket can be downloaded from the IISER Admissions site after it’s notified.
  • Please note that the Admit Card will be issued only to those candidates whose Application form is complete in all respects and has been submitted successfully on or before the last date of filling.
  • The candidates can download their hall ticket after logging into their account in the application portal on the IISER Admissions site.
  • Candidates are required to produce the admit card at the test centre without which entry will not be allowed.





  • The answer keys of computer-based examination will be made available on the IAT website.
  • If a candidate is unsatisfied with an answer, he/she can challenge the answer keys with all necessary enclosures.
  • Provisional Answer Key and Final Answer Key will be released as per schedule.
  • UPDATE (July 18, 2022): Answer Keys for IISER Aptitude Test are available now


  • A Merit List will be prepared based on the score obtained by the candidate in the examination.
  • Admissions in SCB Channel will be done based on the candidate’s rank in the merit list.


  • The result of IISER Aptitude Test is expected to be declared after it’s notified.
  • If a candidate has been allotted a seat in any of the IISERs, the candidate needs to pay the Seat Acceptance Fee (within the due date) to accept the Admission offer and confirm that the candidate intends to join.


  • Candidates will be asked to give college and branch preferences in the online application form.
  • The seat allotment will be done based on the availability of seats in respective IISERs, the candidate’s rank in the merit list, and the candidate’s preferences.



I have not studied Biology/Mathematics at +2 level, can I take the test?

You must have at least one of the two subjects Mathematics and Biology in class XII. However, the questions will be from Biology, Chemistry, Mathematics, and Physics with equal weightage.


Where is the IISER aptitude test conducted?

It is conducted in various cities across India.


Where/When do I get the hall ticket for the IISER aptitude test?

The hall ticket will be available on the IISER Admissions website a few days before the IISER aptitude test.


I am a class XII science student. To which programs can I apply in IISERs?

Any student who has qualified Class XII examination in the science stream either in 2021 or 2022 can apply provided he/she meets the eligibility criteria. For applying to the 4 year BS Programs, students should have Mathematics as one of the subjects in the class XII examination.




Opening of Admission portalApril 25, 2022 May 4, 2022 May 25, 2022
Last date for applicationsMay 20, 2022 May 29, 2022 June 15, 2022
Admit Card downloading for IISER aptitude testJune 26, 2022
IISER aptitude test for SCB channelJune 12, 2022 July 3, 2022
Release of IAT Provisional Answer KeyJuly 18, 2022
Availability of Candidates ResponsesJuly 18, 2022
Last date to submit objection on Answer KeyJuly 20, 2022
Release of IAT Final Answer KeyJuly 27, 2022
IAT Result DeclarationAugust 10, 2022
Last date of Uploading XII Marks & Category CertificateTBA
Start of Academic sessionTBA


Candidates can contact IISER authorities through written communication, phone, or email.

IISER Contact Information
AddressThe Chairperson,
Joint Admissions Committee 2022,
Indian Institute of Science Education & Research Pune,
Dr.Homi Bhabha Road, Pune – 411008, Maharashtra (India)
Admission Helpline020-25908222
Email[email protected]

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