IISER Kolkata-image
Compare colleges
IISER Kolkata Admission 2026: BS-MS, PhD, and Integrated PhD Process
location
Kolkata, West Bengal
Updated on 25 June 2026

IISER Kolkata Admission for 2026 offers diverse pathways into its prestigious science programs, with the BS-MS dual degree primarily requiring a strong performance in the IISER Aptitude Test (IAT). Prospective students also have distinct application routes for PhD and Integrated PhD programs, each with specific eligibility and selection criteria. This guide details the step-by-step application process, eligibility requirements, and crucial deadlines across all admission categories.

Table of Contents

IISER Aptitude Test (IAT) 2026: Key for BS-MS Admission

The IISER Aptitude Test (IAT) 2026, also known as the IISER Entrance Exam, is conducted by the Joint Admissions Committee (JAC) 2026 for admission to various BS-MS, BS, and B.Tech programmes across participating institutes. This online, computer-based test is crucial for aspiring students.

EventDate
IISER 2026 Exam NotificationFebruary 7, 2026
IISER Exam 2026 Registration DateMarch 5, 2026 to April 13, 2026
IISER Aptitude Test 2026 Application CorrectionApril 16, 2026 to April 18, 2026
IISER Admit Card 2026May 26, 2026
IISER Exam 2026June 7, 2026
IISER Provisional Answer Key 2026June 7, 2026
Candidate Response form upload & Portal opens for filing ObjectionsJune 9, 2026
Portal closes for filing ObjectionsJune 13, 2026
Windows for Selective Information/Document Upload in Application FormJune 13, 2026 - June 21, 2026
Last date for Selective Information / Document upload in Application FormJune 21, 2026
ResultFourth Week of June 2026
CounsellingJuly 2026 

This table outlines the critical dates for IAT 2026, from notification to counselling, providing a clear timeline for applicants.

The IISER Aptitude Test (IAT) 2026 serves as the gateway for admission to 5-Year BS-MS Dual Degree, 4-Year BS, and B.Tech programmes across participating institutes. Conducted online as a Computer-Based Test (CBT) by the Joint Admissions Committee (JAC) 2026, it is a key examination.

  • Exam Duration: 3 hours
  • Subjects: Mathematics, Physics, Chemistry, and Biology (Multiple Choice Questions - MCQs)
  • Number of Questions: 60 (15 from each section: Biology, Chemistry, Mathematics, Physics)
  • Marking Scheme: +4 marks for each correct response, -1 mark for each incorrect response, 0 mark for each unattempted question
  • Overall Difficulty Level: Moderate
  • Syllabus Basis: NCERT Class 11 and Class 12 syllabi of Physics, Chemistry, Mathematics and Biology (higher weightage for Class 11 topics)

Eligibility for IAT 2026 requires passing Class XII (or equivalent) in 2024, 2025, or 2026, or appearing in 2026, from a COBSE-recognized board. Candidates must have taken at least three subjects among Biology, Chemistry, Mathematics, and Physics in Class 12, achieving a minimum 60% aggregate (50% for SC/ST/PwD).

Programme SpecializationCampusSeat Intake
BS‑MS ProgrammeIISER Berhampur300
BS‑MS ProgrammeIISER Bhopal300
BS‑MS ProgrammeIISER Kolkata280
BS‑MS ProgrammeIISER Mohali270
BS‑MS ProgrammeIISER Pune288
BS‑MS ProgrammeIISER Tirupati350
BS‑MS ProgrammeIISER Thiruvananthapuram320
BS‑MS in Computational & Data SciencesIISER Kolkata30

This table details the BS-MS programmes and seat intake across various IISER campuses, including specific options for IISER Kolkata Admission in Computational & Data Sciences.

S. No.Name of the InstitutionCourses Offered through IAT 2026
1IIT Madras4-Year Bachelor of Science (BS) Program
2IIT GuwahatiBiomedical Science and Engineering (BMSE) Program
3IISc Bengaluru4-Year Bachelor of Science (BS) (Research) Program
4IACS KolkataIntegrated Bachelor's–Master's in Science (BS-MS) Program
5IIEST Shibpur5-Year BS-MS in Chemistry, Physics and Applied Geology Programme

Beyond IISERs, several other prestigious institutions, such as IIT Madras and IISc Bengaluru, also offer admission to their science programs based on IAT 2026 scores.

SubjectDifficulty LevelStudent Consensus
BiologyEasyMost students found it NCERT-based and scoring.
ChemistryModerateSome students reported the section as lengthy.
PhysicsModerate to ToughWidely considered the most difficult section.
MathematicsModerateMixed feedback; easier than JEE level but challenging for PCB students.

The IAT 2026 exam generally maintains a moderate difficulty, with Physics often being the most challenging section, while Biology is typically considered scoring.

CategoryFee
General/OBC/OBC-NCL/EWSINR 2,000
SC/ST/KM/PwDINR 1,000
Foreign NationalsINR 12,000

The application fee for IAT 2026 varies by category, with reduced fees for SC/ST/KM/PwD candidates and a higher fee for Foreign Nationals.

For comprehensive details and application, candidates should visit the official website, iiseradmission.in. The total seats across IISER programmes are 2,363, with approximately ~2600+ seats available across all participating institutes.

IISER Kolkata Application Process 2026: Step-by-Step Guide

The IISER Kolkata Admission process for 2026 is underway, with the application form readily available on the institute's official website. This section outlines the key steps and essential details for prospective applicants, covering everything from form availability to the selection criteria and contact information.

  • Application Form Availability: The admission application form is available on the institute's official websites.
  • Application Form Status: IISER Kolkata application form 2026 is available on the institute's official website.
  • Admission Basis: Admission is based on merit scored in previous qualifying examinations.
  • Selection Process Components: The selection process includes a counselling session and a personal interview.
  • Admission Fee Payment: The admission fee can be paid as per the IISER Kolkata fee structure.
  • Helpline Phone: +91 033 6136 0055

Applicants should note the comprehensive selection process and available support channels for inquiries.

Contact DetailInformation
Helpline Emailiiserkol.ac.in
Helpline AddressIndian Institute of Science Education And Research Kolkata, Mohanpur, Nadia, 741 246, West Bengal, India

PhD Admission 2026: Eligibility, Deadlines, and Departments

IISER Kolkata Admission for the Doctor of Philosophy (Ph.D.) program is open for the Autumn Semester 2026. This section details key information regarding available departments, application fees, and important dates for prospective students.

  • Program Name: Doctor of Philosophy (Ph.D.)
  • Admission Semester: Autumn Semester 2026
  • Departments Offered: Biological, Chemical, Computational, Earth, Humanities, Mathematics, Physical, Space Sciences.
  • Department Not Advertising: Center of Excellence in Space Sciences India (CESSI).
  • Application Fee (GEN, EWS, OBC-NCL): ₹ 200/-
  • Application Fee (PwD, SC, ST): ₹ 100/-

These details provide an overview of the Ph.D. program structure and initial financial commitments for applicants.

CategoryDetail
Reservation PolicyAs per Govt. of India norms
Interview/Written Test Dates (Physical Sciences)18-June-2026, 19-June-2026 (for shortlisted candidates)
General Queries Emailphd AT iiserkol.ac.in

Further information on specific dates and policies is available, including reservation norms and contact details for general queries.

Integrated PhD & MSc Admission 2026: Requirements and Portals

This section details the Integrated PhD and MSc admission requirements and processes for Autumn 2026 at IISER Kolkata. It covers program structure, eligibility criteria, required aptitude tests, application procedures, and important dates for prospective students.

EventDate/Details
Application portal opensTo be notified
Application portal closes22 May 2026
Publication of Shortlisted candidates for Interview29 May 2026
Selection test/InterviewDBS: 10 -11 June 2026 (first round interview in-person) 15 June2026 (second round interview online) DES: 15-19 June 2026 DPS: 15-19 June 2026
Publication of interview resultsDBS:End of June 2026 DES:30 June 2026 DPS:End of June 2026
Pre-registration portal opensFirst week of July 2026 (first list) Second week of July 2026 (second list)
IPhD Registration29 July 2026

Prospective candidates for IISER Kolkata Admission should note the critical deadlines for the Integrated PhD program, with the application portal closing on May 22, 2026, and interviews scheduled throughout June, leading to registration by July 29, 2026.

IISER Kolkata Admission 2026 Eligibility Criteria and Cutoff Scores

For IISER Kolkata Admission to the BS-MS program in 2026, candidates will be admitted solely based on their IAT scores, as JEE channel admissions have been discontinued. This section outlines the key eligibility criteria for IAT 2026, expected cutoff trends, and specific requirements for other programs.

CriteriaRequirements
QualificationClass 12 or equivalent (Science stream)
Subjects RequiredAt least 3 subjects from Physics, Chemistry, Biology, Mathematics
Minimum Marks60% aggregate (General/OBC/EWS) — 55% for SC/ST/PwD
Year of Passing2024, 2025, or 2026
NationalityIndian nationals, PIO, or OCI holders

These criteria are essential for all applicants seeking IISER Kolkata Admission through the IAT 2026, ensuring candidates meet the academic and nationality requirements.

Score / RankExpected Allotment
120+ marks (IAT)Top IISERs — Pune, Kolkata, Mohali
90–120 marksMid-tier IISERs
70–90 marksNewer IISERs

These expected cutoff trends provide an indication of the scores needed for admission to various IISERs, with higher scores typically securing spots in top institutions like IISER Kolkata.

  • BS-MS Computational & Data Sciences: Mathematics is mandatory (IISER Kolkata)
  • MS Eligibility: Bachelor's degree in science, 60% aggregate marks
  • MS Entrance: Valid score in national exams (JAM, JEST, or equivalent)
  • Integrated PhD (Gen/OBC/EWS): 60% in Honours/Major or Aggregate
  • Integrated PhD (SC/ST): 55% in Honours/Major or Aggregate
  • Integrated PhD Reservation: As per Government of India norms
Integrated-Ph.D ProgrammeRequired Aptitude Tests
Biological SciencesJAM (Biotechnology) / JGEEBILS
Earth SciencesJAM (Geology) OR JAM Physics
Physical SciencesJAM (Physics)/JEST (Physics)

Candidates for the Integrated PhD program must qualify in the specified national level aptitude tests in 2026 to be considered for admission.

IISER Kolkata vs Pune vs Bhopal: Admission Process Comparison 2026

This section provides a detailed comparison of the admission processes for IISER Kolkata and IISER Pune, highlighting key differences in location, seat availability, and cutoff ranks. It also notes specific mathematics requirements for certain programs at IISER Kolkata and IISER Bhopal, crucial for prospective applicants.

ParameterIISER KolkataIISER Pune
LocationMohanpur, West BengalPune, Maharashtra
Establishment Year20062006
Total Seats (BS-MS)280 + 30 (Computational & Data Sciences)288
Cutoff Closing Rank Gen CatRound 1: 935; Round 6: 4758Round 1: 355; Round 7: 3328
Median Salary (BS-MS)INR 10 LPAINR 11.95 LPA

The comparison reveals that while both IISER Kolkata and IISER Pune were established in 2006, IISER Pune generally has a lower cutoff closing rank and a slightly higher median salary for BS-MS programs.

Frequently Asked Questions

What are the specific numbers for admission (seats, cutoffs) for IISER Kolkata, Pune, and Bhopal?

For IISER Kolkata and Pune, aim for 150+ in IAT 2026; Pune's normal cutoff is 160+ out of 240 marks.

How do IISER Kolkata, Pune, and Bhopal compare in terms of admission criteria and statistics?

Admission criteria for IISER Kolkata, Pune, and Bhopal are generally similar.

What are the eligibility requirements for IISER Kolkata Admission?

IISER Kolkata BS-MS admissions are based on IAT scores. Separate eligibility criteria apply for MS courses.

How do I apply for IISER Kolkata Admission?

Visit the official IISER Kolkata website, fill out the application form, and upload required documents. Entrance exams like GATE/JEST/JAM may be needed for specific programs like MS Space Physics for Autumn 2026.

What is the application timeline for IISER Kolkata Admission?

Candidates register for IISER IAT 2025 for BS-MS admissions. Application timelines for other programs like PhD vary.