The Indian Space Research Organisation (ISRO), one of India’s premier space agencies, has officially announced the release of the answer key for the Scientist/Engineer recruitment examination conducted in 2025. This development is a significant milestone for candidates who appeared for the examination, as it provides an opportunity to check their responses and estimate their scores prior to the official result declaration. The recruitment process for Scientist and Engineer positions is highly competitive and sought after, given ISRO’s prestigious reputation in space research and technological advancements. In this detailed guide, we will explore all important details related to the ISRO Scientist/Engineer Answer Key 2025, including the release date, how to access it, and the steps for raising objections if necessary.
Overview of ISRO Scientist/Engineer Recruitment 2025 and Answer Key
The examination for the recruitment of Scientist/Engineer positions was successfully conducted on 26 October 2025. A total of 39 vacancies are planned to be filled through this recruitment process, covering various disciplines suited for engineering and scientific domains as per the official notifications. The answer key, released on 4th November 2025, serves as a provisional response sheet that reflects the correct answers for all questions asked in the exam. This allows candidates to cross-verify their responses with the correct answers provided by ISRO.
Key Highlights
| Feature | Details |
|---|---|
| Exam Date | 26 October 2025 |
| Vacancies | 39 |
| Answer Key Release Date | 4 November 2025 |
| Official Website | isro.gov.in |
| Number of Candidates Appeared | Not specified, but significant based on application numbers |
| Objection Submission Deadline | Details to be announced (Candidates must act promptly) |
Accessing and Downloading the ISRO Answer Key 2025
All interested candidates can access the answer key through the official ISRO website. The organization provides the provisional answer key as a part of transparent recruitment procedures. Here are the detailed steps to get your answer key downloaded easily:
Step-by-Step Guide to Download
Step 1: Visit the Official ISRO Website
Navigate to the official ISRO recruitment portal by clicking on the link: isro.gov.in.
Step 2: Locate the Answer Key Section
On the homepage or recruitment page, look for the section labeled “Recruitment” or “Answer Keys & Results.” The latest answer key notification is typically highlighted for easy access.
Step 3: Find the Relevant Link
Click on the link for “ISRO Scientist/Engineer Answer Key 2025” or similar wording, which will redirect you to the answer key download page.
Step 4: Login Credentials
Use your registration ID and password, which you created during the application process. Enter these details to access the answer key download option.
Step 5: Download and Save
Download the answer key PDF file and save it for future reference. It is advisable to take a printout for detailed analysis.
Important Details and Notifications
The answer key was officially released on 4 November 2025 exclusively on the ISRO website. It includes solutions based on various categories such as General, OBC, SC, ST, etc., to ensure fair evaluation across all candidates. Candidates are encouraged to review the answer key thoroughly to assess their performance.
Important Notices
- The answer key is provisional and subject to challenge within the stipulated deadline.
- Candidates need to log in using their credentials to view and download the answer key.
- There will be an opportunity to challenge the provisional answers if discrepancies are found.
- Once the objection period ends, ISRO will release the final answer key without further changes.
Challenging the Answer Key
If candidates identify discrepancies or errors in the provisional answer key, they have the chance to raise objections. The process generally involves submitting a formal challenge through the official portal along with supporting evidence or justifications. All objections are reviewed by ISRO experts, and necessary modifications are made before the release of the final answer key.
Procedure to Challenge the Answer Key
Step 1: Log in to your Candidate Account
Use your registration ID and password on the ISRO recruitment portal.
Step 2: Access the Objection Link
Click on the link designated for answer key challenges or objections.
Step 3: Submit Your Objection
Provide comprehensive details of the question, the correct answer you suggest, and upload any supporting documents or references.
Step 4: Pay the Objection Fee (if applicable)
Some examinations might require a fee for each objection. Confirm the fee structure on the portal and complete the payment process.
Step 5: Final Submission
Review all entered information, submit your challenge, and retain the receipt or confirmation for future reference.
Post-Objection Process and Final Result
After the deadline for objections, ISRO will carefully review all challenges submitted by candidates. Based on these reviews, necessary corrections are incorporated, and the final answer key is made available. The results will be announced subsequently, based on the final evaluated answer sheet and cut-off marks.
Understanding Cut-Offs and Results
In order to qualify for the next rounds of selection, candidates must meet or exceed the sectional and overall cut-off marks based on the final answer key. These cut-offs are determined by ISRO based on the exam’s difficulty level, the number of applicants, and other evaluation metrics.
Factors Influencing Cut-Offs
- Difficulty level of the exam
- Number of candidates appearing
- Number of vacancies available
- Category-wise reservation policies
Once the final answer key is released, ISRO will publish the cut-off marks along with the results on their official portal. Candidates who clear the cut-offs will be called for interview or further evaluation processes as notified.
Conclusion
The release of the ISRO Scientist/Engineer answer key 2025 marks an essential step in the recruitment process, demonstrating transparency and fairness. Candidates are advised to carefully review the provisional answer key, submit any objections within the specified deadline, and stay tuned for further updates regarding results and selection. To stay updated, candidates should regularly visit the official ISRO recruitment portal and keep their login credentials handy for prompt access to all notices and documents.