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ISRO Centralised Recruitment Board (ICRB)

ISRO Scientist/Engineer SC Answer Key 2027 — Official & Expected

Download official answer keys, challenge wrong answers, and check your expected score

Total Questions80 Q
Marking Scheme+1 for correct, -0.33 for wrong answer
Expected DateTo be announced

Answer Key Release Timeline

Exam Conducted

Done

Provisional Key Released

Expected: To be announced

Objection Window

Upcoming

Final Key Released

Upcoming

How to Download Official Answer Key

1

Visit official website of ISRO Centralised Recruitment Board (ICRB)

2

Navigate to the "Answer Key" section on the homepage

3

Select your exam date and shift from the dropdown

4

Download the PDF answer key to your device

5

Match each response with your recorded answers

Note: Official download available on ISRO Centralised Recruitment Board (ICRB) website after exam date.

Expected Answer Key — Subject-wise Breakdown

SubjectQuestionsCorrect Answer PatternDifficulty
Technical Subject (50 Questions)27Mixed (A/B/C/D)Very Hard
General Science & Mathematics (20 Questions)27Mixed (A/B/C/D)Very Hard
General Awareness (10 Questions)27Mixed (A/B/C/D)Very Hard
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Disclaimer: This is a provisional estimated breakdown. Official answer key will be published by ISRO Centralised Recruitment Board (ICRB).

Expected Score Calculator

Marking scheme: +4 per correct, 1 per wrong

How to Challenge Wrong Answers

1

Download Objection Form

Get the official objection form from the conducting body's website

2

Pay Challenge Fee

₹200 per question challenged. Fee is refunded if objection is accepted

3

Submit with Proof

Attach supporting proof (books, previous papers) for each challenged question

4

Await Resolution

Result declared after expert review — reflected in final answer key

Frequently Asked Questions

Prepare for ISRO Scientist/Engineer SC with Full Mock Tests

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