ISRO ICRB Answer Key 2025: The Indian Space Research Organisation (ISRO) has officially released the ISRO ICRB Answer Key 2025 for the Scientist/Engineer ‘SC’ written examination. The answer keys for the test held on 26th October 2025 are now available on the official ISRO recruitment website, www.isro.gov.in. The answer keys have been published in the form of subject-wise PDFs for both the EMC (Electronics, Mechanical, Computer Science) and CEPO (Civil, Electrical, Refrigeration & A/C, Architecture) recruitment drives. Candidates can now check the provisional answer keys and calculate their expected scores.
Crucially, ISRO has announced that a dedicated link for raising objections against the provisional answer key will be activated on the website shortly. Candidates must note that objections will only be accepted through this official link, and any objections sent via email or any other mode will not be considered.
ISRO ICRB Answer Key 2025 – Overview
The table below provides a quick overview of the key details regarding the ISRO ICRB Answer Key 2025:
| Aspect | Details |
|---|---|
| Organization Name | Indian Space Research Organisation (ISRO) |
| Advertisement No. | ISRO:ICRB:02(EMC):2025 & ISRO:ICRB:03(CEPO):2025 |
| Post Name | Scientist/Engineer ‘SC’ |
| Exam Date | 26th October 2025 |
| Answer Key Release Date | 28th October 2025 |
| Mode of Answer Key | Online (Subject-wise PDFs) |
| Official Website | www.isro.gov.in |
| Objection Window | To be activated shortly |
ICRB Answer Key 2025 PDF Download Link
The direct links to download the subject-wise provisional answer keys for both recruitment drives are available on the ISRO website. For your convenience, you can access them from the official portals below:
For Scientist/Engineer ‘SC’ (Electronics, Mechanical, Computer Science) – Advt No. ICRB:02(EMC):2025
- Computer Science Answer Key: Download PDF
- Electronics Answer Key: Download PDF
- Mechanical Answer Key: Download PDF
For Scientist/Engineer ‘SC’ (Civil, Electrical, Refrigeration & A/C, Architecture) – Advt No. ISRO:ICRB:03(CEPO):2025
- Architecture Answer Key: Download PDF
- Civil Answer Key: Download PDF
- Electrical Answer Key: Download PDF
- Refrigeration & Air Conditioning Answer Key: Download PDF
Steps to Check and Download the ISRO ICRB Answer Key 2025
Candidates can follow these simple steps to download the answer key from the official ISRO website:
- Step 1: Visit the official ISRO careers website at www.isro.gov.in.
- Step 2: On the homepage, navigate to the “Careers” section.
- Step 3: Find the relevant recruitment advertisement—either for EMC or CEPO posts.
- Step 4: Click on the link that says “ANSWER KEYS FOR THE WRITTEN TEST HELD ON 26.10.2025”.
- Step 5: A new page will open with links to the subject-wise answer key PDFs. Click on your subject to view and download the file.
- Step 6: Save the PDF for future reference and use it to calculate your probable score.
Also Read: IBPS SO Mains Admit Card 2025 OUT at ibps.in: Download Specialist Officer Hall Ticket Here
Raise Objections Against ISRO ICRB Answer Key 2025
ISRO has provided candidates with an opportunity to challenge the provisional answer key in case of any discrepancies. The process to raise objections is strictly online.
How to Raise Objections Against the ISRO ICRB Answer Key 2025?
- Wait for the Link: Keep a close watch on the official ISRO website for the activation of the “Raise Objection” link, which is expected to be active shortly.
- Access the Portal: Once the link is active, click on it to access the objection portal.
- Login (If Required): You may need to log in using your application credentials.
- Select and Challenge: Select the question number you wish to challenge and provide the correct answer as per your belief, along with a valid justification or reference from a standard textbook.
- Submit and Pay Fee: Submit your objection. A nominal fee per question may be applicable for raising objections.
- Final Submission: Complete the process and take a printout of the confirmation for your records.
ISRO ICRB Scientist/Engineer SC Answer Key 2025 FAQs
Q1. Is the ISRO ICRB Provisional Answer Key 2025 released?
Ans: Yes, the provisional answer key was released on October 28, 2025.
Q2. Where can I download the ISRO ICRB Answer Key?
Ans: You can download it from the official ISRO website at www.isro.gov.in under the respective recruitment advertisement in the “Careers” section.
Q3. How can I challenge an answer in the provisional answer key?
Ans: You can raise an objection through the official link that will be activated shortly on the ISRO website. Objections sent via any other mode will not be entertained.
Q4. Is there negative marking in the ISRO ICRB exam?
Ans: Yes, there is a negative marking of 0.33 marks for every incorrect answer.