Get the IAT Answer Key 2025 PDF. Check official response sheet, raise objections, and calculate your expected score using the marking scheme.
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IAT Answer Key 2025 – Complete Details and PDF Download
The IISER Aptitude Test (IAT) 2025 was recently conducted, and students across India are now eagerly waiting for the IAT Answer Key 2025. This blog post provides complete and clear information about the IAT 2025 official answer key, how to download it, objection process, marking scheme, and other important updates.
What is IAT?
IAT stands for IISER Aptitude Test, which is a national-level entrance exam conducted by the Indian Institutes of Science Education and Research (IISERs). It is held for admission into science and research programs (BS-MS dual degree) for students who have completed Class 12 with a science background.
Latest Update on IAT Answer Key 2025
- The IAT 2025 exam was held on 24 May 2025.
- Unofficial answer keys by coaching centers are available now.
- The official IAT answer key 2025 will be released soon on the IISER admission website.
Official Website: https://iiseradmission.in
How to Download IAT Answer Key 2025 PDF
Follow these simple steps to download the official answer key:
- Visit the official IISER admission website at https://iiseradmission.in.
- On the homepage, look for the “IAT 2025 Answer Key” link.
- Click on the link and download the PDF file.
- Match your answers with the official key to estimate your score.
Benefits of IAT Answer Key
- Helps you estimate your score before the result.
- Gives clarity about right and wrong answers.
- Helps in raising objections if any mistake is found.
- Boosts confidence or helps plan next steps.
What Does the Answer Key Include?
The answer key includes correct answers for all questions asked in the exam. It is usually divided subject-wise:
- Physics
- Chemistry
- Mathematics
- Biology
You can use the answer key to match your responses and calculate your estimated score.
How to Raise Objections on IAT Answer Key 2025
If you find any incorrect answer in the official key, you can raise an objection.
Steps to Raise Objection:
- Go to the official website https://iiseradmission.in.
- Click on the “Raise Objection” section (available after key release).
- Login using your Application Number and Date of Birth.
- Select the question you want to challenge.
- Provide the correct answer with supporting documents or references.
- Pay the objection fee (usually Rs. 100 per question).
Note: The objection window is open for 2 to 3 days after the answer key is released.
IAT 2025 Marking Scheme
Understanding the marking scheme will help you calculate your expected score:
| Response Type | Marks Awarded |
| Correct Answer | +3 marks |
| Incorrect Answer | -1 mark |
| Unanswered Question | 0 mark |
How to Calculate Your Estimated Score
You can estimate your IAT score using this formula:
(Number of correct answers x 3) – (Number of incorrect answers x 1)
Example:
If you got 40 questions correct and 10 questions wrong:
(40 x 3) – (10 x 1) = 120 – 10 = 110 marks
When Will the IAT 2025 Result Be Announced?
As per the official schedule, the IAT 2025 result is expected in the first week of June 2025. Once declared, candidates can check their scores and ranks using their login details on the official website.
Official and Unofficial Answer Key Links
| Type | Link |
| Official Answer Key | Available soon at official site |
| Unofficial Answer Key | Released by some coaching centers |
| Response Sheet Download | After answer key release |
Keep checking https://iiseradmission.in for all official updates.
Conclusion
The IAT Answer Key 2025 is not just a document – it’s the first step in knowing your future. Whether you’re confident or nervous, checking the answer key will give you clarity and help you plan ahead. If you’ve worked hard, this is your time to assess that effort. Stay calm and use the key wisely.
Frequently Asked Questions (FAQs)
-
When will the official IAT 2025 answer key be released?
It is expected to be released by the end of May 2025
-
Can I challenge the IAT answer key?
Yes, you can challenge the key by submitting objections online with a fee.
-
Where can I find the official IAT answer key PDF?
It will be available on https://iiseradmission.in.
-
How much is the objection fee?
Usually, it is Rs. 100 per question.
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