IISER IAT 2027 applications are expected to open at iiseradmission.in in January 2027; you can complete registration, upload documents, and pay the fee entirely online in under 30 minutes.

The Indian Institutes of Science Education and Research Aptitude Test (IAT) is the gateway to the BS-MS Dual Degree Programme at all seven IISERs. Conducted by IISER on behalf of all campuses, the exam is managed through the centralised portal iiseradmission.in. Applications for the 2027 cycle are expected to follow the same online-only process used in 2026. This guide covers every step from new registration to final submission, along with eligibility, fee, and document requirements.

  • Application mode: Online only at iiseradmission.in
  • Expected application window: January 2027 to April 2027 (based on 2026 trends)
  • Application fee (General/OBC-NCL/EWS male): Rs. 2,000
  • Application fee (SC/ST/PwD/all female students): Rs. 1,000
  • Minimum eligibility: 60% in Class 12 PCM or PCB (55% for SC/ST/PwD)
  • Expected exam date: June 2027
  • Admission channels: IAT and JEE Advanced rank (both accepted)
Direct Link — IISER IAT 2027 Application Form at iiseradmission.in (Opens January 2027)

Eligibility Criteria for IISER IAT 2027

You must meet the academic eligibility requirements before filling the application form. Students who do not satisfy the Class 12 percentage cutoff at the time of admission will be disqualified even if they qualify the exam.

Criterion General / OBC-NCL / EWS SC / ST / PwD
Class 12 aggregate in PCM or PCB Minimum 60% Minimum 55%
Year of passing Class 12 2025, 2026, or appearing in 2027 2025, 2026, or appearing in 2027
Compulsory subjects in Class 12 Physics and Chemistry; plus Maths or Biology Physics and Chemistry; plus Maths or Biology
Age limit No upper age limit specified No upper age limit specified

Students who passed Class 12 before 2025 are not eligible for IISER IAT 2027. If you hold a valid JEE Advanced 2027 rank, you can also apply through the JEE Advanced channel on the same portal — you do not need to sit for IAT separately in that case.


How to Fill the IISER IAT 2027 Application Form

The complete application is done on iiseradmission.in in five stages. Complete all stages in a single session or save and return using your Application ID and password.

Step 1: New Registration

  1. Visit iiseradmission.in and click New Registration or Apply Online.
  2. Enter your full name, date of birth, email address, and mobile number exactly as they appear on your Class 10 certificate.
  3. Set a strong password. Note your Application ID and password immediately — you will need them to resume or recheck your form.
  4. Verify your email address and mobile number using the OTPs sent by the system before proceeding.

Step 2: Fill Personal and Academic Details

  1. Log in with your Application ID and password.
  2. Fill personal details: nationality, gender, category (General / OBC-NCL / EWS / SC / ST / PwD).
  3. Enter your Class 12 board, subject combination, roll number, and percentage. If you are appearing in 2027, enter the expected percentage.
  4. Select IISER campus preferences in order — you may rank all seven campuses (Pune, Kolkata, Mohali, Bhopal, Thiruvananthapuram, Tirupati, Berhampur).
  5. Choose your preferred exam city from the available test centre list.

Step 3: Upload Scanned Documents

  1. Upload a recent passport-size photograph (JPG format, white background, 10–200 KB).
  2. Upload your signature (JPG format, black ink on white paper, 10–50 KB).
  3. Upload your Class 10 mark sheet or certificate for date of birth proof (PDF or JPG, under 1 MB).
  4. If you have passed Class 12, upload the Class 12 mark sheet (PDF or JPG, under 1 MB).
  5. Upload a category certificate if claiming SC / ST / OBC-NCL / EWS / PwD reservation — it must be issued by a competent authority in the prescribed format.

Step 4: Pay the Application Fee

  1. After saving your form, proceed to the payment gateway on iiseradmission.in.
  2. Pay using net banking, debit card, credit card, or UPI.
  3. Download and save the payment receipt immediately after the transaction is confirmed.

Step 5: Final Submission and Printout

  1. Review all details on the preview screen carefully — name, category, subject combination, and campus preferences.
  2. Click Final Submit to lock your application. Changes are typically not allowed after this step.
  3. Download the application confirmation page as a PDF and keep it for your records until seat allotment is complete.

Documents Required for IISER IAT 2027

Scan and keep all documents ready before you begin the form to avoid session timeouts mid-way through the process.

Document Format Maximum Size
Recent passport-size photograph (white background) JPG / JPEG 200 KB
Signature (black ink on white paper) JPG / JPEG 50 KB
Class 10 mark sheet or passing certificate PDF or JPG 1 MB
Class 12 mark sheet (if already passed) PDF or JPG 1 MB
Category certificate — SC / ST / OBC-NCL / EWS (if applicable) PDF or JPG 1 MB
PwD certificate (if applicable) PDF or JPG 1 MB

Ensure your photograph is recent (taken within 6 months) and that your signature matches the one in your Class 10 certificate. Blurred or cropped uploads are rejected during scrutiny.


IISER IAT 2027 Application Fee

The IISER IAT 2027 application fee is expected to be Rs. 2,000 for General, OBC-NCL, and EWS male students and Rs. 1,000 for SC, ST, PwD, and all female students, based on 2026 fee structure. The fee is non-refundable once the payment is successfully processed.

Category Expected Fee (2027)
General / OBC-NCL / EWS (Male) Rs. 2,000
SC / ST / PwD Rs. 1,000
All Female Students (all categories) Rs. 1,000

Payment is accepted via debit card, credit card, net banking, and UPI on the iiseradmission.in payment gateway. If your payment fails but the amount is debited, it is usually refunded within 5–7 working days by your bank.


IISER IAT 2027 Important Dates (Expected)

All dates below are expected and based on the 2026 schedule. Official dates for 2027 will be published on iiseradmission.in. Bookmark the portal and check it regularly from December 2026 onwards.

Event Expected Date (2027)
Official notification release December 2026 – January 2027
Application form opens on iiseradmission.in January 2027
Last date to submit application form April 2027
Admit card release May 2027
IISER IAT 2027 exam date June 2027
Result declaration June – July 2027
Counselling and seat allotment July – August 2027

IISER IAT 2027 Application FAQs

Ques. What is the official website to apply for IISER IAT 2027?

Ans. The official website for IISER IAT 2027 applications is iiseradmission.in. All steps — new registration, document upload, fee payment, and admit card download — are completed on this single centralised portal managed by IISER on behalf of all seven campuses.

Ques. What is the minimum Class 12 percentage required for IISER IAT 2027?

Ans. General, OBC-NCL, and EWS students need a minimum of 60% aggregate in Class 12 with Physics, Chemistry, and either Mathematics or Biology. SC, ST, and PwD students require a minimum of 55%. The percentage is calculated on all subjects or only the relevant science subjects, depending on the board’s marking scheme.

Ques. Can students who are currently in Class 12 (appearing in 2027) apply for IISER IAT 2027?

Ans. Yes. Students appearing in Class 12 board exams in 2027 are eligible to apply and sit for IAT 2027. However, they must secure the required minimum percentage when their board results are declared to confirm their admission — a provisional seat is cancelled if the condition is not met.

Ques. Is the IISER IAT 2027 application fee refundable if I do not appear for the exam?

Ans. No. The IISER IAT 2027 application fee is non-refundable once the payment is successfully processed, regardless of whether you appear for the exam or not. Always confirm your eligibility before completing payment.

Ques. How many IISER campus preferences can I select in the application form?

Ans. You can list all seven IISER campuses — Pune, Kolkata, Mohali, Bhopal, Thiruvananthapuram, Tirupati, and Berhampur — in order of your preference. Seat allotment is based on your IAT rank and the preference order you submit, so choose carefully.

Ques. If I have a JEE Advanced rank, do I still need to fill the IISER IAT 2027 application form?

Ans. Yes. Even if you qualify JEE Advanced 2027, you must register on iiseradmission.in to apply for IISER admission through the JEE Advanced channel. The portal handles both IAT and JEE Advanced applications, and you will need to select the channel and provide your JEE Advanced rank during form filling.