The IISER Aptitude Test 2026 (IAT 2026) is the national-level entrance examination conducted by the Indian Institutes of Science Education and Research (IISERs) for admission to the prestigious 5-year BS-MS dual degree, 4-year BS, and B.Tech programmes at its seven campuses – Berhampur, Bhopal, Kolkata, Mohali, Pune, Thiruvananthapuram, and Tirupati. The IISER Aptitude Test 2026 will be conducted on 7 June 2026 from 9:00 AM to 12:00 Noon IST in Computer-Based Test (CBT) mode. The IISER Aptitude Test 2026 application was open from 5 March 2026 to 13 April 2026 at iiseradmission.in, with the form correction window from 16-18 April 2026. The IISER Aptitude Test Admit Card 2026 will be released on 24 May 2026. In 2026, three new participating institutes – IACS Kolkata, IIT Guwahati, and IIEST Shibpur – have been added, taking the total to 11 IAT-accepting institutions.
Latest: – IISER Aptitude Test 2026 Admit Card to be released on 24 May 2026 at iiseradmission.in. IAT 2026 exam will be conducted on 7 June 2026 (9 AM – 12 Noon IST). Application closed 13 April 2026; correction window closed 18 April 2026.
IISER Aptitude Test 2026
What is the IISER Aptitude Test 2026?
The IISER Aptitude Test 2026 (IAT 2026) is the sole entrance examination for admission to the Indian Institutes of Science Education and Research (IISERs) for the 2026-27 academic year. Conducted nationally in Computer-Based Test (CBT) mode by the Joint Admissions Committee (with IISER Berhampur as the conducting institute for 2026), the IISER Aptitude Test 2026 admits students to the flagship 5-year BS-MS dual degree programme across all seven IISERs, as well as specialized 4-year BS and B.Tech programmes at IISER Bhopal and IISER Tirupati. New for 2026, IACS Kolkata, IIT Guwahati, and IIEST Shibpur also accept IAT 2026 scores for selected undergraduate science programmes. The IISER Aptitude Test 2026 is open to candidates who have passed Class 12 with any three subjects out of Physics, Chemistry, Mathematics, and Biology with a minimum of 60% aggregate (55% for SC / ST / PwD candidates).
IISER Aptitude Test 2026 Direct Link – Candidates can check the IISER Aptitude Test 2026 notification, login portal, admit card, and result details at the official website iiseradmission.in.
Quick Links
- IISER Aptitude Test Admit Card 2026
- IISER Aptitude Test Answer Key 2026
- IISER Aptitude Test Result 2026
- IISER Aptitude Test Syllabus 2026
IISER Aptitude Test 2026 Important Dates
| Event | Date (2026) |
|---|---|
| IISER Aptitude Test 2026 Notification Release | February 2026 |
| IAT 2026 Application Form Start | 05 March 2026 |
| IAT 2026 Application Form Last Date | 13 April 2026 (11:55 PM IST) |
| IAT 2026 Application Form Correction Window | 16 – 18 April 2026 |
| IISER Aptitude Test Admit Card 2026 Release | 24 May 2026 |
| IISER Aptitude Test 2026 Exam Date | 07 June 2026 (9:00 AM – 12:00 Noon IST) |
| IAT 2026 Provisional Answer Key | June 2026 (Post-Exam) |
| IAT 2026 Objection Window | June 2026 (Limited Period) |
| IAT 2026 Final Answer Key | 4th week of June 2026 |
| IISER Aptitude Test Result 2026 Declaration | June 2026 |
| IISER 2026 Counselling / Seat Allocation | June – July 2026 |
| Academic Session Begins | August 2026 (Tentative) |
IISER Aptitude Test 2026 Eligibility Criteria
To be eligible for the IISER Aptitude Test 2026, candidates must satisfy the following criteria:
- Nationality: Indian citizens, Persons of Indian Origin (PIO), Overseas Citizens of India (OCI), and Foreign Nationals (with AIU equivalence certificate).
- Qualifying Examination: Class 12 (10+2) pass with any three subjects out of Physics, Chemistry, Mathematics, and Biology.
- Year of Passing: Class 12 passed in 2025 or appearing in 2026.
- Minimum Marks: 60% aggregate (or equivalent CGPA) in Class 12 for General / OBC-NCL / EWS / Foreign Nationals; 55% aggregate for SC / ST / PwD candidates.
- Mathematics Requirement: Mathematics is mandatory for BS-MS Computational & Data Sciences (IISER Kolkata), B.Tech / BS Economic Sciences (IISER Bhopal), and BS Economic & Statistical Sciences (IISER Tirupati).
- Foreign Nationals: Must upload an equivalence certificate from the Association of Indian Universities (AIU).
- Kashmiri Migrants: Must upload a valid domicile certificate.
- EWS Candidates: Must upload a valid EWS certificate for 2025-2026 (not 2024-2025).
IISER 2026 Participating Institutes (11 Total)
| Institute | Location |
|---|---|
| IISER Berhampur (Conducting Body) | Berhampur, Odisha |
| IISER Bhopal | Bhopal, Madhya Pradesh |
| IISER Kolkata | Kolkata, West Bengal |
| IISER Mohali | Mohali, Punjab |
| IISER Pune | Pune, Maharashtra |
| IISER Thiruvananthapuram | Thiruvananthapuram, Kerala |
| IISER Tirupati | Tirupati, Andhra Pradesh |
| IACS Kolkata (New) | Kolkata, West Bengal |
| IIT Guwahati (New) | Guwahati, Assam |
| IIEST Shibpur (New) | Shibpur, West Bengal |
| NISER Bhubaneswar | Bhubaneswar, Odisha |
IISER 2026 Programmes Offered
The following programmes are offered for admission through the IISER Aptitude Test 2026 (IAT 2026):
- 5-Year BS-MS Dual Degree in Biology, Chemistry, Physics, Mathematics, and Earth Sciences – All 7 IISERs.
- 4-Year BS in Economic Sciences – IISER Bhopal.
- 4-Year BS in Economic & Statistical Sciences – IISER Tirupati.
- 4-Year B.Tech in Engineering and Computational Sciences – IISER Bhopal.
- BS-MS in Computational & Data Sciences – IISER Kolkata.
- Selected undergraduate science programmes at IACS Kolkata, IIT Guwahati, and IIEST Shibpur.
How to Apply for IISER Aptitude Test 2026
The IISER Aptitude Test 2026 application process (closed on 13 April 2026) was conducted in online mode:
- Visit the official IISER admission portal at iiseradmission.in.
- Click on the “IISER Aptitude Test 2026 Apply Online” / “New Registration” link.
- Register using Name, Email ID, Mobile Number, and Date of Birth; create a password.
- Log in with the system-generated Application Number.
- Fill in personal, academic, communication, and exam centre preference details.
- Upload scanned documents: Photograph, Signature, Class 10 Certificate, Class 12 Marksheet (if available), Category Certificate (if applicable).
- Pay the IISER Aptitude Test 2026 application fee online via Net Banking / Debit Card / Credit Card / UPI.
- Submit the application form and download the confirmation page.
- Use the correction window (16-18 April 2026) to make permitted edits if needed.
IISER Aptitude Test 2026 Application Fee
| Category | Application Fee |
|---|---|
| General / OBC-NCL / EWS | Rs. 2,000 (approx.) |
| SC / ST / PwD | Rs. 1,000 (approx.) |
| Female (all categories) | Concessional fee as per official notification |
| Foreign Nationals | Rs. 5,000 (approx.) |
IISER Aptitude Test 2026 Exam Pattern
| Particular | Details |
|---|---|
| Exam Name | IISER Aptitude Test 2026 (IAT 2026) |
| Conducting Body | IISER Berhampur (for 2026) |
| Mode of Exam | Computer-Based Test (CBT) |
| Total Duration | 3 hours (180 minutes) |
| Exam Timing | 9:00 AM – 12:00 Noon IST (Single Shift) |
| Total Questions | 60 MCQs (15 each from Physics, Chemistry, Mathematics, Biology) |
| Question Type | Multiple Choice Questions (MCQs) |
| Marking Scheme | +4 for correct; -1 for incorrect |
| Maximum Marks | 240 |
| Medium | English |
IISER 2026 Selection Process
The IISER 2026 selection process consists of the following stages:
- Stage 1 – IISER Aptitude Test 2026: Computer-based entrance exam on 7 June 2026 covering Physics, Chemistry, Mathematics, and Biology.
- Stage 2 – Result & Rank: IAT 2026 result declared in June 2026, with All-India Rank (AIR) and category-wise rank.
- Stage 3 – Online Counselling Registration: Qualifying candidates register for the IISER 2026 counselling at iiseradmission.in.
- Stage 4 – Choice Filling: Candidates select preferred IISERs (Berhampur / Bhopal / Kolkata / Mohali / Pune / Thiruvananthapuram / Tirupati) and programmes in order of preference.
- Stage 5 – Seat Allotment: Multiple rounds of seat allotment based on IAT 2026 rank, category, and choices filled.
- Stage 6 – Seat Acceptance Fee (SAF): Pay SAF to confirm the allotted seat.
- Stage 7 – Reporting & Document Verification: Report at the allotted IISER campus with original documents.
- Stage 8 – Final Admission: Pay the IISER course fee and confirm admission for the 2026-27 academic year.
IISER Aptitude Test 2026 FAQs
The IISER Aptitude Test 2026 (IAT 2026) is the national-level entrance examination conducted by the Indian Institutes of Science Education and Research for admission to its 5-year BS-MS dual degree, 4-year BS, and B.Tech programmes at seven IISER campuses (Berhampur, Bhopal, Kolkata, Mohali, Pune, Thiruvananthapuram, Tirupati). In 2026, IACS Kolkata, IIT Guwahati, and IIEST Shibpur have also been added as participating institutes, taking the total to 11 IAT-accepting institutions.
The IISER Aptitude Test 2026 will be conducted on 7 June 2026 from 9:00 AM to 12:00 Noon IST in Computer-Based Test (CBT) mode at various centres across India. The IISER Aptitude Test Admit Card 2026 will be released on 24 May 2026 at iiseradmission.in.
Candidates must have passed Class 12 (10+2) with any three subjects out of Physics, Chemistry, Mathematics, and Biology, with a minimum of 60% aggregate (55% for SC / ST / PwD). Class 12 should be passed in 2025 or appearing in 2026. Mathematics is mandatory for select programmes like BS-MS Computational & Data Sciences (IISER Kolkata) and B.Tech / BS Economic Sciences (IISER Bhopal).
The IISER Aptitude Test 2026 is a 3-hour Computer-Based Test (CBT) with 60 Multiple Choice Questions (MCQs) divided equally among Physics, Chemistry, Mathematics, and Biology (15 questions each). The marking scheme is +4 for correct answers and -1 for incorrect answers, with a maximum of 240 marks. The medium of the exam is English.
There are seven IISER campuses in India: IISER Berhampur (Odisha), IISER Bhopal (Madhya Pradesh), IISER Kolkata (West Bengal), IISER Mohali (Punjab), IISER Pune (Maharashtra), IISER Thiruvananthapuram (Kerala), and IISER Tirupati (Andhra Pradesh). In 2026, three additional institutes – IACS Kolkata, IIT Guwahati, and IIEST Shibpur – have also been included as IAT participating institutes for selected science programmes.
The IISER Aptitude Test 2026 application fee is approximately Rs. 2,000 for General / OBC-NCL / EWS candidates, Rs. 1,000 for SC / ST / PwD candidates, and Rs. 5,000 for Foreign Nationals. A concessional fee applies to female candidates as per the official notification. The fee was paid online via Net Banking, Debit Card, Credit Card, or UPI during the application window (5 March – 13 April 2026).
After the IISER Aptitude Test 2026 result is declared in June 2026, qualifying candidates must register for IISER online counselling at iiseradmission.in. They fill choices of IISER campus and programme in order of preference, after which seats are allotted in multiple rounds based on IAT 2026 rank, category, and seat availability. Candidates then pay the Seat Acceptance Fee (SAF), report at the allotted IISER for document verification, and pay the course fee to confirm admission.
IISER Aptitude Test 2026 – Overview
| Particular | Details |
|---|---|
| Exam Name | IISER Aptitude Test 2026 (IAT 2026) |
| Conducting Body | IISER Berhampur (for 2026), Joint Admissions Committee |
| Total IISER Campuses | 7 (Berhampur, Bhopal, Kolkata, Mohali, Pune, Thiruvananthapuram, Tirupati) |
| Total IAT Participating Institutes (2026) | 11 (incl. IACS Kolkata, IIT Guwahati, IIEST Shibpur) |
| Programmes | 5-Year BS-MS, 4-Year BS, B.Tech in Science / Computational / Economic Sciences |
| Application Window | 05 March – 13 April 2026 |
| Correction Window | 16 – 18 April 2026 |
| Admit Card Release | 24 May 2026 |
| Exam Date | 07 June 2026 (9 AM – 12 Noon IST) |
| Mode of Exam | Computer-Based Test (CBT) |
| Duration | 3 hours (180 minutes) |
| Total Questions / Marks | 60 MCQs / 240 marks |
| Marking Scheme | +4 correct, -1 incorrect |
| Subjects | Physics, Chemistry, Mathematics, Biology (15 Qs each) |
| Eligibility | Class 12 with 3 subjects from PCMB, 60% (55% reserved) |
| Result Declaration | June 2026 |
| Selection Process | IAT 2026 + Online Counselling + Seat Allotment + SAF + Reporting |
| Official Website | iiseradmission.in |
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