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IISER Kolkata Admission 2026: BS-MS, PhD, and Integrated PhD Process

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.
| Event | Date |
|---|---|
| IISER 2026 Exam Notification | February 7, 2026 |
| IISER Exam 2026 Registration Date | March 5, 2026 to April 13, 2026 |
| IISER Aptitude Test 2026 Application Correction | April 16, 2026 to April 18, 2026 |
| IISER Admit Card 2026 | May 26, 2026 |
| IISER Exam 2026 | June 7, 2026 |
| IISER Provisional Answer Key 2026 | June 7, 2026 |
| Candidate Response form upload & Portal opens for filing Objections | June 9, 2026 |
| Portal closes for filing Objections | June 13, 2026 |
| Windows for Selective Information/Document Upload in Application Form | June 13, 2026 - June 21, 2026 |
| Last date for Selective Information / Document upload in Application Form | June 21, 2026 |
| Result | Fourth Week of June 2026 |
| Counselling | July 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 Specialization | Campus | Seat Intake |
|---|---|---|
| BS‑MS Programme | IISER Berhampur | 300 |
| BS‑MS Programme | IISER Bhopal | 300 |
| BS‑MS Programme | IISER Kolkata | 280 |
| BS‑MS Programme | IISER Mohali | 270 |
| BS‑MS Programme | IISER Pune | 288 |
| BS‑MS Programme | IISER Tirupati | 350 |
| BS‑MS Programme | IISER Thiruvananthapuram | 320 |
| BS‑MS in Computational & Data Sciences | IISER Kolkata | 30 |
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 Institution | Courses Offered through IAT 2026 |
|---|---|---|
| 1 | IIT Madras | 4-Year Bachelor of Science (BS) Program |
| 2 | IIT Guwahati | Biomedical Science and Engineering (BMSE) Program |
| 3 | IISc Bengaluru | 4-Year Bachelor of Science (BS) (Research) Program |
| 4 | IACS Kolkata | Integrated Bachelor's–Master's in Science (BS-MS) Program |
| 5 | IIEST Shibpur | 5-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.
| Subject | Difficulty Level | Student Consensus |
|---|---|---|
| Biology | Easy | Most students found it NCERT-based and scoring. |
| Chemistry | Moderate | Some students reported the section as lengthy. |
| Physics | Moderate to Tough | Widely considered the most difficult section. |
| Mathematics | Moderate | Mixed 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.
| Category | Fee |
|---|---|
| General/OBC/OBC-NCL/EWS | INR 2,000 |
| SC/ST/KM/PwD | INR 1,000 |
| Foreign Nationals | INR 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 Detail | Information |
|---|---|
| Helpline Email | iiserkol.ac.in |
| Helpline Address | Indian 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.
| Category | Detail |
|---|---|
| Reservation Policy | As per Govt. of India norms |
| Interview/Written Test Dates (Physical Sciences) | 18-June-2026, 19-June-2026 (for shortlisted candidates) |
| General Queries Email | phd 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.
| Event | Date/Details |
|---|---|
| Application portal opens | To be notified |
| Application portal closes | 22 May 2026 |
| Publication of Shortlisted candidates for Interview | 29 May 2026 |
| Selection test/Interview | DBS: 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 results | DBS:End of June 2026 DES:30 June 2026 DPS:End of June 2026 |
| Pre-registration portal opens | First week of July 2026 (first list) Second week of July 2026 (second list) |
| IPhD Registration | 29 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.
| Criteria | Requirements |
|---|---|
| Qualification | Class 12 or equivalent (Science stream) |
| Subjects Required | At least 3 subjects from Physics, Chemistry, Biology, Mathematics |
| Minimum Marks | 60% aggregate (General/OBC/EWS) — 55% for SC/ST/PwD |
| Year of Passing | 2024, 2025, or 2026 |
| Nationality | Indian 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 / Rank | Expected Allotment |
|---|---|
| 120+ marks (IAT) | Top IISERs — Pune, Kolkata, Mohali |
| 90–120 marks | Mid-tier IISERs |
| 70–90 marks | Newer 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 Programme | Required Aptitude Tests |
|---|---|
| Biological Sciences | JAM (Biotechnology) / JGEEBILS |
| Earth Sciences | JAM (Geology) OR JAM Physics |
| Physical Sciences | JAM (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.
| Parameter | IISER Kolkata | IISER Pune |
|---|---|---|
| Location | Mohanpur, West Bengal | Pune, Maharashtra |
| Establishment Year | 2006 | 2006 |
| Total Seats (BS-MS) | 280 + 30 (Computational & Data Sciences) | 288 |
| Cutoff Closing Rank Gen Cat | Round 1: 935; Round 6: 4758 | Round 1: 355; Round 7: 3328 |
| Median Salary (BS-MS) | INR 10 LPA | INR 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.


