IISER Entrance Exam 2025 was conducted on May 25, 2025, at various exam centres across the nation. IAT shift timings for 2026 were 9:00 am to 12:00 pm. Check out the IISER exam reporting timings, shift and important instructions regarding the exam here.
- IISER Entrance Exam 2025 Shift Timings
- IISER 2025 Reporting Timings
- IISER Entrance Exam Pattern 2025
- IISER Entrance Exam Application Fee
- IISER Exam 2025 Important Instructions for the Candidates
IISER Entrance Exam 2025 Shift Timings
Candidates who will be appearing in the IISER entrance exam can check out the exam shift timings from the table given below:
| IISER 2025 Shift |
IISER 2025 Shift Timing |
Duration (in hours) |
|---|---|---|
| Shift 1 |
9:00 AM to 12:00 PM |
180 Minutes or 3 hours |
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IISER 2025 Reporting Timings
The IISER exam 2025 shift-wise reporting timings are given in the table below.
The portal for document upload and freezing of IISER preferences for IISER 2026 Admissions is expected to begin in the month of July 2026, tentatively. After accepting the offer and paying the seat acceptance fee, the candidate can exercise two options:
- Candidate can FREEZE the seat (they will not participate in further rounds of counselling),
- Candidate can FLOAT (they will participate in further rounds of counselling to get their higher preferences). The FLOAT option is activated by default for those who pay the seat acceptance fee. A student who has chosen to FLOAT will again be considered for seat allocation in the next round. If they are eligible to secure a seat in an IISER that is higher in their preference list than the currently accepted one, they will be offered that seat.
|
Dates of Examination |
May 25, 2025 |
|---|---|
| Mode of Examination |
“Computer-Based Test (CBT)” mode only |
| Shift |
Shift-1 |
| Timing of Examination |
9:00 AM to 12:00 PM |
|
Duration of Examination |
180 Minutes or 3 hours |
| Entry in the Examination Centre/Hall/Room, frisking, biometric registration/ record of manual attendance by Invigilator, document verification/cross-checking of Admit Card, signature, and photo match to be completed by Invigilator, etc. Instructions by the Invigilator(s) |
07.00 a.m. to 08.30 a.m. |
|
07.00 a.m. to 08.30 a.m. |
|
| Candidates log in to read instructions |
08.50 a.m. |
| Test Commences |
09.00 a.m. |
| Test Concludes |
12:00 p.m |
Candidates are informed about the IISER 2025 shift timings on their admit cards. The IISER admit card 2025 mentions shift or slot timings, reporting timing and the exam duration.
IISER Entrance Exam Pattern 2025
The IISER Entrance Exam Marking Scheme is as follows:
| Subject |
No. of Questions |
Marks |
|---|---|---|
| Physics |
15 |
60 |
| Chemistry |
15 |
60 |
| Biology |
15 |
60 |
| Mathematics |
15 |
60 |
| Total |
60 |
240 |
Marking scheme: Candidates will be awarded three marks for each correct answer. There will be a negative marking of one mark for each incorrect answer.
Also Read: IISER Entrance Exam 2025 Pattern: Check Negative Marking Scheme & Section-wise Paper Pattern Here
IISER Entrance Exam Application Fee
All the selected students must go through the following table to know the exact amount they need to submit for the IISER entrance exam 2025 application fee in online mode through the secure payment gateway by visiting the official website.
| Category |
IISER Application Fee (in INR) |
|---|---|
| General/ OBCNC |
2,000 |
| SC/ST/ Kashmiri Migrants/ PwD |
1,000 |
| Foreign National category | 12,000 |
IISER Exam 2025 Important Instructions for the Candidates
1. Candidates are advised to report at the Examination Centre well in time, i.e. 2 hours before commencement of the examination.
2. Candidates should take their seats immediately after the opening of the Examination Hall. If the candidates do not report in time due to any reason, i.e. traffic jam, train/bus delay, etc., they are likely to miss some of the important instructions to be announced in the Examination Rooms/Halls. NTA shall not be responsible for any delay.
3. The candidate must show, on demand, the Admit Card downloaded/printed from the NTA website for admission in the examination room/hall. The Test Centre Staff on duty is authorised to verify the identity of candidates and may take steps to verify and confirm the identity credentials. Candidates are requested to extend their full cooperation. A candidate who does not possess a valid Admit Card and authorised Photo ID shall not be permitted to take the examination under any circumstances by the Centre Superintendent.
4. A seat indicating Roll Number will be allotted to each candidate. Candidates should find and sit in their allocated seats only. In case a candidate ventures to change his/her seat and does not sit on the seat allotted to him/her could face cancellation of candidature. No plea would be entertained in this regard.
5. The candidate should ensure that the Question Paper available on the computer is as per his/her opted subject indicated in the Admit Card. In case the subject of the Question Paper is other than his/her opted subject, the same may be brought to the notice of the Invigilator concerned.
6. The candidates may approach the Centre Superintendent/Invigilator in the room for any technical assistance, first aid emergency, or any other information during the course of the examination. For any queries or issues regarding the Computer-Based Test, the candidates may contact on Helpline Numbers available on the Common University Entrance Test website.
7. In case a candidate, by furnishing false information, appears in more than one shift/date, his candidature will be cancelled and his result will not be declared.
8. For those who are unable to appear on the scheduled date of the test for any reason, a re-test shall not be held by the NTA under any circumstances.
Note: Candidates shall appear at their own cost at the Centre on the Date, Subject and timing of the Examination as indicated in their Admit Card issued by the NTA. Under no circumstances shall the choice of cities for the Centre and the timing of examination provided in the Admit Card be changed.
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Student Forum
Answered Yesterday
Total marks of the IISER Entrance Exam are 240. The total number of questions in the exam is 60, each carrying four marks. Marks in each section are 15, making the sectional weightage 60. Questions are asked on Physics, Chemistry, Biology and Mathematics. In case of a wrong answer, there will be a d
M
Beginner-Level 5
Answered Yesterday
There is no age limit to apply or appear for the IISER Entrance Exam 2026. However, applicants must have appeared for their Board examination in 2024, 2025 or 2026. Based on this, applicants must apply for the exam. Apart from this, students should have studied Physics, Chemistry, Biology and Mathe
A
Beginner-Level 5
Answered Yesterday
IISER Entrance Exam is conducted for admission to the 5-year BS MS programme offered at the seven Indian Institutes of Science Education and Research. Apart from that, the IISER Aptitude Test scores are also accepted by IISc Bangalore for the 4-year BS course and for the BS - Medical Sciences and En
Answered Yesterday
According to the IISER Entrance Exam 2025 analysis, Physics was the toughest section of the exam. The overall difficulty level ranged from moderate to tough. The topics covered in the question papers were Electricity and Magnetism, Mechanics, Optics and Modern Physics. The questions were distributed
A
Beginner-Level 5
Answered a week ago
The IISER entrance exam 2026 application process is likely to begin in the third week of March 2026. The mode of the application process is completely online. Students have to visit the exam portal to fill and submit the form. Along with entering the mandatory information, they also need to upload d
N
Beginner-Level 5
Once IISER result is declared, a seat allotment list is declared containing roll numbers of candidates who are allocated seats in BSMS programme through different channels (SCB, KVPY JEE). Candidates can check the first round allotment list on the official website of the exam on July 15, 2025, Tentatively. All candidates whose roll numbers appear in the first round allotment list need to log in to their application portal to download the offer letters.