The Indian Space Research Organisation (ISRO) has officially releasing the ISRO ICRB Answer Key 2025. Candidates who appeared for the highly anticipated written examination held on October 26, 2025, can now access the provisional answer keys to check their responses and calculate their expected scores. Candidates who appeared for the test can now access the provisional answer keys on the official ISRO recruitment website, www.isro.gov.in. The keys have been published in a structured, subject-wise PDF format, catering to the two major recruitment drives. In this article we will cover all important details related this recruitment process.
ISRO ICRB Answer Key 2025 Overview
| Organization | Indian Space Research Organisation (ISRO |
| Posts | Various |
| Post Name | Scientist/Engineer ‘SC’ |
| Answer Key Release date | 30 October 2025 |
| Answer key Status | Released |
| Objection Dates | Within 3 days |
| Official Website | www.isro.gov.in |
How to Download the ISRO ICRB Scientist/Engineer Answer Key 2025
Follow below steps to download answer key:
- Go to the official website www.isro.gov.in.
- On the homepage look up for active link of “ISRO ICRB Scientist/Engineer Answer Key 2025”.
- Click on active link and you will see a pdf file will appear on your screen.
- Download pdf file and check your scores.
How to Calculate Your Expected Score
Candidates must strictly follow the official marking scheme, including the negative marking provision.
| Part of Exam | Number of Questions | Marks per Correct Answer | Negative Marking |
| Part A: Engineering Discipline | 80 | +1 Mark | -1/3 Mark for each wrong answer |
| Part B: Aptitude & Reasoning | 15 | Varies (Total 20 Marks) | No Negative Marking |
| Total | 95 | 100 Marks |
Frequently Asked Questions (FAQs)
Q1: For which exam date and post has the answer key been released?
A1: The answer key has been released for the written examination conducted on 26th October 2025 for the post of Scientist/Engineer ‘SC’ under the ISRO Centralised Recruitment Board (ICRB) 2025 recruitment drive.
Q2: When will the final results for the ISRO Scientist/Engineer SC 2025 exam be declared?
A2: The final results will be declared only after the objection process is complete and the final answer key
Q3: Until when can I submit objections against the provisional answer key?
A3: This period is typically very short, usually 3 to 7 days from the release of the provisional key.
