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After the GATE exam, the first thing every candidate wants is the GATE answer key. It lets you check your answers, estimate your marks and, if you find an error, raise an objection before the result is prepared. In this blog, we explain the GATE answer key 2027, the expected release date, how to download the provisional and final answer keys, how the answer key challenge works including the fee, what “MTA” means, how to calculate your marks, and what happened in GATE 2026 as a reference. The information is based on the latest details available as of October 15, 2026.
GATE Answer Key 2027: Latest Update
GATE 2027 will be held on February 6, 7, 13, 14, 20 and 21, 2027, and the result is scheduled for March 19, 2027. IIT Madras, the organizing institute, has not yet announced the dates for the answer key and the challenge window. They will be released after the exam, so for now the dates below are expected, based on earlier years.
| Event | GATE 2027 date |
|---|---|
| GATE 2027 exam | February 6, 7, 13, 14, 20 and 21, 2027 |
| Provisional answer key, response sheet and master question paper | To be announced (expected a few days after the exam) |
| Answer key challenge window | To be announced |
| Final answer key | To be announced (expected before the result) |
| Result | March 19, 2027 |
Always check the official website, gate2027.iitm.ac.in, for the confirmed dates.
What is the GATE Answer Key?
The GATE answer key is the official list of correct answers for each question in each test paper. It is released in two stages:
- Provisional answer key: released first, along with the master question paper and each candidate’s response sheet. Candidates can challenge it.
- Final answer key: released after the challenges are reviewed. It is used to prepare the result, and it cannot be challenged.
The answer key is released for every one of the 30 test papers, and for papers held in more than one session, for each session.
GATE 2026 Answer Key: A Look Back
The GATE 2026 cycle, organised by IIT Guwahati, shows the sequence to expect:
- February 22, 2026: provisional answer key, master question paper and response sheets released through the GOAPS portal
- February 25 to February 28, 2026: answer key challenge window
- March 2026: final answer key released before the result
- March 19, 2026: result declared
GATE 2027 is expected to follow a similar order, but IIT Madras will announce its own dates, and the details may be different.
How to Download the GATE Answer Key 2027
- Open the official GATE 2027 website, gate2027.iitm.ac.in.
- Click the GOAPS candidate login link.
- Log in with your enrollment ID or registered email ID and your password.
- Click the link for the answer key, response sheet or master question paper.
- Select your test paper and session.
- Download the PDF and save it in more than one place.
The answer key is meant for candidates who appeared in the exam, and you can use your own login to see your response sheet along with it. If the answer key is also published as a public PDF for each paper, you will find it on the official website.
What is the Master Question Paper?
The master question paper is the full question paper with a unique question ID for every question. It is released along with the provisional answer key. You need it for two reasons: to match your response sheet with the key, and to give the correct question ID when you challenge an answer.
How to Read the GATE Answer Key 2027
The key lists, for each question, the question ID, the question type, the marks and the correct answer. The types are:
| Question type | How the key shows the answer |
|---|---|
| MCQ (Multiple Choice Question) | One correct option |
| MSQ (Multiple Select Question) | One or more correct options. You must select all the correct options and none of the wrong ones |
| NAT (Numerical Answer Type) | A single value or a range, and your answer is correct if it falls in the range |
One more term you may see is MTA (Marks to All). When a question is marked MTA, the marks for that question are awarded to all candidates who attempted that paper, for example when the question is found to be wrong or unclear.
GATE 2027 Answer Key Challenge
If you believe an answer in the provisional key is wrong, you can challenge it during the window announced by the organizing institute. Based on the GATE 2026 process, the steps are:
- Log in to the GOAPS portal and open the option to contest the answer key.
- Choose the question using its question ID from the master question paper.
- Write your justification clearly.
- Upload supporting proof, such as a PDF with references from standard textbooks or published sources.
- Pay the objection fee online.
- Submit the challenge.
Challenge fee
For GATE 2026, the fee was reported as ₹500 per question for Indian candidates and US $10 per question for international candidates. You can challenge more than one question, and the fee is paid for each question. Sources differed on whether the fee is refunded when an objection is accepted, so check the official notice for the rule that applies to GATE 2027.
Tips for challenge
- Challenge only if you are sure, and keep your justification clear and short.
- Attach reliable references, such as standard textbooks or papers.
- Use the correct question ID from the master question paper.
- Submit before the window closes, because late challenges are not accepted.
- Do not challenge a question just because you answered it wrongly.
GATE 2027 – What Happens After the Challenge Window?
Subject experts review all challenges. If an objection is valid, the key is corrected, or the question may be treated as MTA, and the final answer key is released. The result is prepared using the final answer key, and the final key is not open to challenge. So your estimate from the provisional key can change after the final key arrives.
GATE Final Answer Key 2027
The final answer key is expected in March 2027, before the result on March 19, 2027. In GATE 2026, it was released in March, a few days before the result. Always use the final key for your last marks estimate, because it is the one the result is based on.
How to Calculate Your Marks Using GATE 2027 Answer Key
Compare your response sheet with the answer key and apply the marking scheme.
| Question type | Marks | Negative marking |
|---|---|---|
| MCQ, 1 mark | 1 | One-third mark for a wrong answer |
| MCQ, 2 marks | 2 | Two-thirds mark for a wrong answer |
| MSQ, 1 or 2 marks | 1 or 2 | No negative marking and no partial marking |
| NAT, 1 or 2 marks | 1 or 2 | No negative marking |
Add the marks for correct answers, subtract the negative marks for wrong MCQs, and you get your raw marks out of 100. This is only an estimate: your final score depends on the final key, normalisation for multi-session papers, and the score formula. Confirm the marking scheme in the GATE 2027 brochure.
GATE 2027 – Provisional Key vs Final Key
| Point | Provisional key | Final key |
|---|---|---|
| When released | First, a few days after the exam | After challenges are reviewed |
| Can be challenged | Yes | No |
| Used for the result | No | Yes |
| Best use | Quick estimate of marks | Final estimate before the result |
Common Mistakes to Avoid – GATE 2027 Answer Key
- Treating the provisional key as the final answer
- Challenging many questions without proof
- Using the wrong question ID
- Missing the challenge deadline
- Forgetting that NAT answers are accepted within a range
- Using unofficial answer keys from coaching websites as official
Unofficial keys prepared by coaching institutes can help you predict, but only the official key from IIT Madras counts.
What to Do After Checking the GATE Answer Key
- Estimate your marks and compare them with the previous year’s qualifying marks and cutoffs.
- Keep your documents ready for counselling and PSU applications.
- Wait for the final key and the result on March 19, 2027.
- Make a backup plan, such as a retake in the next GATE cycle, if the estimate is low.
Prepare for GATE 2027 With the Entri App
A reliable answer key estimate starts with solid preparation. The Entri app can help your GATE 2027 preparation with paper-wise mock tests by Entri experts, study material and guidance, all on your mobile.
The GATE answer key 2027 will help you estimate your marks and, if needed, challenge an incorrect answer before the result on March 19, 2027. Download the provisional key as soon as it is released, challenge only with proof and within the window, and use the final key for your last estimate. Dates for GATE 2027 will be announced by IIT Madras, so keep checking the official website. Keep practising with the Entri app so that your answer key check turns into a good result.
Frequently Asked Questions
When will the GATE 2027 answer key be released?
IIT Madras has not announced the date. It is expected a few days after the exam. In GATE 2026, the provisional key was released on February 22, 2026.
Where can I download the GATE answer key 2027?
On the GOAPS portal, from the official GATE 2027 website, gate2027.iitm.ac.in.
Can I challenge the GATE answer key?
Yes, the provisional key can be challenged during the announced window. The final key cannot be challenged.
What is the fee to challenge the GATE answer key?
In GATE 2026, it was ₹500 per question for Indian candidates and US $10 per question for international candidates. Check the GATE 2027 notice for the fee.
What is the answer key challenge window?
In GATE 2026, it was February 25 to 28, 2026. The GATE 2027 window will be announced by IIT Madras.
What does MTA mean in the GATE answer key?
MTA means Marks to All. The marks for that question are given to all candidates who appeared for that paper.
When will the GATE 2027 final answer key be released?
It is expected in March 2027, before the result on March 19, 2027.
Do I need to upload proof when I challenge an GATE answer?
Yes. You need to write your justification and upload supporting proof.
