ISRO Scientist Engineer Answer Key 2026 – Download PDF & Raise Objections

The ISRO Scientist Engineer Answer Key 2026 has been released by the Indian Space Research Organisation (ISRO) through the ISRO Centralised Recruitment Board (ICRB) on 12 November 2026. Candidates who appeared for the Scientist/Engineer ‘SC’ recruitment exam can now download the provisional answer key and their response sheet from the official website, isro.gov.in, and compare their recorded answers with the official key.

The computer based test (CBT) for this recruitment was held on 29 October 2026, after being rescheduled from the earlier date of 19 October 2026. The recruitment is for 175 Scientist/Engineer ‘SC’ posts in Electronics, Mechanical and Computer Science, and candidates who find any discrepancy in the provisional key can raise objections online through the candidate login facility until 15 November 2026, up to 1:00 PM. Candidates are advised to check their answers and submit objections, if any, well before the deadline.

ISRO Scientist Engineer Answer Key 2026 Overview

ISRO released the provisional answer key and response sheet for the Scientist/Engineer ‘SC’ recruitment exam on 12 November 2026, under Advertisement No. ISRO:ICRB:03(EMC):2026. The exam was conducted by the ISRO Centralised Recruitment Board (ICRB) for 175 vacancies, including backlog posts, in Electronics, Mechanical and Computer Science disciplines at ISRO Centres and the Physical Research Laboratory (PRL).

According to the published information, the 175 vacancies are spread across the three disciplines, with 99 posts in Electronics, 52 in Mechanical and 21 in Computer Science, besides one post in each discipline at the Physical Research Laboratory (PRL). Candidates should note that this answer key relates only to the 175-post recruitment under Advertisement No. ISRO:ICRB:03(EMC):2026, and not to any other ISRO recruitment cycle.

ISRO Scientist Engineer Answer Key 2026 Important Dates

Candidates who appeared for the exam should keep these dates in mind, because the objection window closes at 1:00 PM on 15 November 2026. After the objection window closes, ISRO will review the challenges received and then publish the final answer key. The ISRO ICRB Scientist Engineer exam date 2026 was revised once during this recruitment, so candidates should rely only on the dates given on the official website.

How to Download the ISRO Scientist Engineer Answer Key 2026

Candidates can download the provisional answer key and their response sheet from the official ISRO website by following the steps below. Candidates will need the registration number and password used during the application process to log in.

1. Visit the official ISRO website at isro.gov.in.
2. Go to the Careers section on the homepage and open the ICRB recruitment portal.
3. Find the link for the Scientist/Engineer ‘SC’ answer key under Advertisement No. ISRO:ICRB:03(EMC):2026.
4. Log in using your registration number and password.
5. Open the answer key and your response sheet, and compare your recorded answers with the official key.
6. Download the answer key and keep a copy for future reference.

Candidates who downloaded the ISRO ICRB Scientist Engineer admit card 2026 for the exam will use the same login credentials to access the answer key portal. If the login does not work, candidates should check that they are using the registration number issued for this advertisement, and use the password recovery option on the portal if needed.

ISRO Scientist Engineer Answer Key 2026 Objection Process

Candidates who find a mistake in the provisional answer key can raise objections online through the candidate login facility on the official portal. The objection window is open until 15 November 2026, up to 1:00 PM, and objections submitted after this time will not be accepted.

1. Log in to the ICRB candidate portal on isro.gov.in using your registration number and password.
2. Open the answer key objection link for Advertisement No. ISRO:ICRB:03(EMC):2026.
3. Select the question or answer you wish to challenge and state the reason for the objection clearly.
4. Upload supporting documents or references, if the portal asks for them.
5. Pay the objection fee, if any, as shown on the portal, and submit the objection.
6. Save the acknowledgement or receipt for future reference.

No objection fee amount was confirmed in the published information available at the time of writing, so candidates should check the fee, if any, on the official objection portal before submitting a challenge. Candidates should raise objections only where they can point to a clear error, and should keep a copy of the objection details and payment receipt, if any, until the final answer key is published.

ISRO Scientist Engineer Result 2026 Date

The ISRO Scientist Engineer Result 2026 date has not been announced yet. According to the published information, the result will be declared only after the objection window closes on 15 November 2026 and the objections are reviewed. Candidates who clear the written test will be shortlisted for the interview stage, as the selection process for this recruitment is a written test or CBT followed by an interview.

Candidates should keep checking the official ISRO website for the result announcement. ISRO publishes its results on the official portal, and candidates can also refer to recent result updates such as the ISRO Assistant JPA Result 2026 for an idea of how ISRO result announcements are published. The final answer key will be released along with or before the result, after the objections are examined.

Important Links

• Official Website – isro.gov.in
• Download Answer Key / Response Sheet – isro.gov.in (open the Careers / ICRB recruitment portal)

Candidates should use only the official ISRO website for downloading the answer key and for raising objections. Do not rely on links shared on unofficial websites or social media, and verify every detail on the official site before acting on it.

FAQs

Disclaimer: This article is based on the information published on the official ISRO website and news reports available at the time of writing. Candidates should verify all dates, links and instructions on the official website, isro.gov.in, before taking any action, as dates and procedures may change.