ISRO Scientist Engineer Answer Key 2026: Objections till 15 November
The ISRO Centralised Recruitment Board (ICRB) has released the provisional answer key and response sheet for the Scientist/Engineer ‘SC’ Computer Based Test (CBT) under advertisement ISRO:ICRB:03(EMC):2026. The key sits on the candidate login page, and the objection window runs till 15 November 2026.
The key is for candidates who sat the test under the ISRO Scientist Engineer Recruitment 2026, which has the full notification, vacancies and eligibility. Open the login link in Essential Links, compare the key with your response sheet and raise any objection before the window closes.
ISRO Scientist Engineer Answer Key 2026 at a Glance
| Detail | Information |
|---|---|
| Organisation | ISRO Centralised Recruitment Board (ICRB) |
| Exam / Post | Scientist/Engineer ‘SC’ Written Test (CBT) |
| Advt No. | ISRO:ICRB:03(EMC):2026 |
| Stage document | Provisional answer key and response sheet |
| Where to see it | Candidate login page |
| Objection window | Runs till 15 November 2026 |
| Official website | isro.gov.in |
| Status | Provisional answer key out |
Objection Window for the ISRO Scientist Engineer Answer Key
| Detail | Information |
|---|---|
| Key status | Provisional |
| Objections close | 15 November 2026 |
| Route | Through the link provided after the test |
The notification says objections are accepted only through the link provided after the test. Anything received after the window, or through any other mode, will not be considered under any circumstances. Because this key is provisional, raise every disputed question inside the window.
Marking Scheme and Score Calculation
| Part | Questions and Marks | Marking |
|---|---|---|
| Part A: area or discipline specific | 80 MCQs, 80 marks | Plus 1 for a correct answer, zero for unattempted, minus one-third of a mark for a wrong answer |
| Part B: aptitude and ability | Maximum 15 MCQs, 20 marks | No deduction for wrong answers |
To estimate your score, count the correct answers in Part A against the key, subtract one-third of a mark for each wrong answer, and add your Part B marks. The written test carries 100 marks in all. Part B covers numerical, logical, diagrammatic, abstract and deductive reasoning.
How to See the ISRO Scientist Engineer Answer Key
Open the official link below and log in with the details the page asks for. The provisional key and your response sheet are shown after login.
What’s Next
The written test is followed by shortlisting at a ratio of 1:5, for the interview of 100 marks. The notification gives the final panel as 50% written test marks and 50% interview marks. The interview date has not been announced.
About the ISRO Scientist Engineer Recruitment 2026
| Detail | Information |
|---|---|
| Posts | Scientist/Engineer ‘SC’ (Electronics, Mechanical, Computer Science) |
| Vacancies | 175 |
| Advt No. | ISRO:ICRB:03(EMC):2026 |
| Recruitment post | ISRO Scientist Engineer Recruitment 2026: Notification, Vacancies & Eligibility |
Essential Links
- Download ISRO Scientist Engineer 2026 Answer Key
- Visit ISRO Scientist Engineer Official Website
- ISRO Scientist Engineer Recruitment 2026: Notification, Vacancies & Eligibility
- Join WhatsApp Channel for Government Jobs
- Join Telegram Channel for Government Jobs
The provisional key can be challenged only till 15 November 2026, so check each Part A answer against your response sheet before then. GovtJobsAlert.in will cover the next stage when ISRO announces it.