ISRO Scientist Engineer Answer Key 2026 - Quick Overview
| Particular | Details |
|---|---|
| Organisation | Indian Space Research Organisation (ISRO), Centralised Recruitment Board (ICRB) |
| Post Name | Scientist/Engineer 'SC' |
| Advertisement No. | ISRO:ICRB:03(EMC):2026 |
| Total Vacancies | 175 (Electronics 100, Mechanical 53, Computer Science 22) |
| Exam Mode | Computer Based Test (CBT) |
| CBT Date | 29/10/2026 |
| Answer Key Release Date | 12/11/2026 |
| Answer Key Mode | Online, through a candidate login portal |
| Login Details Required | User ID and Password |
| Official Website | isro.gov.in |
Important Dates
| Event | Date |
|---|---|
| CBT Held On | 29/10/2026 |
| Answer Key and Objection Window Opens | 12/11/2026, 1:00 PM |
| Last Date and Time to Raise Objections | 15/11/2026, 1:00 PM |
Vacancy Details
The answer key covers the recruitment for 175 Scientist/Engineer 'SC' posts across three disciplines.
| Discipline | Number of Posts |
|---|---|
| Electronics | 100 |
| Mechanical | 53 |
| Computer Science | 22 |
| Total | 175 |
How to Download the ISRO Scientist Engineer Answer Key 2026
Candidates can access the answer key and their response sheet through the official ISRO careers page or the direct login link given below.
- Visit the official ISRO website, isro.gov.in.
- Open the Careers section on the homepage.
- Find the notice for Advertisement No. ISRO:ICRB:03(EMC):2026.
- Click the link for Answer Keys and Objections to the Answer Keys.
- On the login page, enter your User ID and Password along with the captcha shown on screen.
- Submit the details to view your question paper, marked responses and the answer key.
- Download and save the response sheet PDF for future reference.
How to Raise an Objection Against the ISRO Answer Key
If you believe an answer in the provisional key is incorrect, you can challenge it on the same portal before the deadline of 15/11/2026, 1:00 PM. Objections must be submitted through the official link only.
- Log in to the official answer key and objection portal.
- Open the question paper and the answer key.
- Select the question you want to challenge.
- Enter the answer you consider correct.
- Attach or cite valid proof, such as a reference book or document, wherever the portal asks for it.
- Complete the submission and save the acknowledgement.
Important Instructions for Candidates
- Use only the official login link or the ISRO careers page to access the answer key.
- Objections sent by any other mode, or after 15/11/2026, 1:00 PM, will not be accepted.
- Download your response sheet before the window closes, as access may end after the deadline.
- Submit objections with valid supporting proof for each challenged question.
- Keep your login details safe and do not share them.
ISRO Scientist Engineer Answer Key 2026 - Important Links
| Link | URL |
|---|---|
| ISRO Scientist Engineer Answer Key and Objection Login | Click Here |
| ISRO Careers Page | Click Here |
| ISRO Official Website | Click Here |
