ISRO Scientist Engineer Answer Key 2026 has been released by the ISRO Centralised Recruitment Board (ICRB) for the computer based test (CBT) of Scientist/Engineer ‘SC’ posts under Advertisement No. ISRO:ICRB:03(EMC):2026. Candidates who took the CBT on 29 October 2026 can now log in, see the questions, compare their marked responses with the provisional key and work out an expected score before the next stage.
This recruitment is the second Scientist/Engineer ‘SC’ drive of 2026. Unlike the earlier GATE-based advertisement, this one selects candidates through a written test (CBT) followed by an interview, so the answer key is the first real indicator of where you stand.
ISRO Scientist Engineer Answer Key 2026: Overview
| Organisation | Indian Space Research Organisation (ISRO), Centralised Recruitment Board (ICRB) |
| Advertisement No. | ISRO:ICRB:03(EMC):2026 (dated 27 August 2026) |
| Post | Scientist/Engineer ‘SC’ (Group A Gazetted, Pay Level 10) |
| Disciplines | Electronics, Mechanical, Computer Science |
| Vacancies | About 175 (tentative) |
| Selection | Written Test (CBT) + Interview |
| Answer Key Mode | Online login (User ID and Password) |
| Official Website | isro.gov.in |
Important Dates
| Event | Date |
|---|---|
| Notification Released | 27 August 2026 |
| Last Date to Apply Online | 16 September 2026 |
| CBT Held On | 29 October 2026 |
| Answer Key and Objection Window Opened | 12 November 2026, 1:00 PM |
| Last Date to Raise Objections | 15 November 2026, 1:00 PM |
| Interview | To be notified |
How to Download ISRO Scientist Engineer Answer Key 2026
- Go to the official website, isro.gov.in, and open the Careers section.
- Under ICRB, open the page for Advertisement No. ISRO:ICRB:03(EMC):2026.
- Click the link for the answer key and objections.
- Log in with your User ID, Password and the captcha shown on screen.
- View the question paper, your marked responses and the provisional key side by side.
- Download or save the response sheet as a PDF for your records.
How to Raise an Objection
Objections were accepted only online, through the same login portal, until 15 November 2026 at 1:00 PM. Candidates had to select the disputed question, enter the answer they believe is correct and support the claim with valid proof. Objections sent by any other mode, or after the deadline, are not considered. ISRO’s experts review the valid challenges before preparing the final key.
How to Estimate Your Score
Count your correct and incorrect answers against the provisional key and apply the marking scheme given in the official advertisement. Keep in mind that the provisional key can change after objections, so treat your total as an estimate. Shortlisting for the interview is based on CBT merit, and the interview schedule will be announced separately by ICRB.
What to Do Next
Keep your saved response sheet and login details safe, and watch the ISRO Careers page for the final answer key, the CBT result and the interview shortlist. For more exam updates, browse our Sarkari Result section.
Important Links
| Link | Open |
|---|---|
| ISRO Recruitment Page (Advt. 03(EMC):2026) | Click Here |
| Official Advertisement PDF | Click Here |
| ISRO Careers | Click Here |
| ISRO Official Website | Click Here |
ISRO Scientist Engineer Answer Key 2026: FAQs
Is the ISRO Scientist Engineer Answer Key 2026 out?
Yes. ISRO released the provisional answer key on 12 November 2026 for the Scientist/Engineer ‘SC’ CBT held on 29 October 2026.
What was the last date to raise objections?
Objections could be submitted online until 15 November 2026 at 1:00 PM. Late objections or those sent by other modes are not accepted.
Which login details are needed?
You need the User ID and Password created during registration, plus the captcha shown on the login page.
Is GATE used in this ISRO recruitment?
No. Advertisement ISRO:ICRB:03(EMC):2026 selects candidates through a written test (CBT) and an interview, not GATE scores.
Truzio shares this information for convenience. Always confirm dates and details on the official website, isro.gov.in, before taking any action.