ISRO Assistant & UDC Final Answer Key 2026 Out - Download Link

The ISRO Centralised Recruitment Board (ICRB) final answer key for the Assistant, UDC, JPA and Stenographer written test is listed as released on 28 October 2026. Candidates can open the answer key login page from the link in this article. The skill test is listed for 1 November 2026.

Direct Link to Check ISRO Assistant and UDC Final Answer Key 2026

ISRO Final Answer Key 2026 - Quick Overview

How to Check the ISRO Final Answer Key 2026

1. Open the answer key login page from the Important Links section.
2. Enter the login credentials requested on the page.
3. Open your response sheet and the answer key.
4. Compare each of your answers with the key.
5. Save or print the page for your records.

How to Calculate Your ISRO Written Test Score

The written test carries negative marking. Use this formula:

Score = (Number of correct answers × 1) − (Number of wrong answers × 0.25)

Unattempted questions are not mentioned in the marking scheme, so no marks are assumed for them.

ISRO Written Test Pattern

Qualifying Marks in the Written Test

• Unreserved (UR): 50% in each part
• Reserved categories: 40% in each part

ISRO Recruitment 2026 Important Dates

Also Read: RPSC 2nd Grade Result 2026

What Happens After the Final Answer Key?

1. Shortlisting for the skill test: Candidates are shortlisted based on written test performance, in a ratio of up to 1:5 against category-wise vacancies, with a minimum of 10 candidates.
2. Skill test: Computer literacy for Assistant/UDC. Stenography test for JPA/Stenographer.
3. Final selection: Based on written test marks, from among candidates who qualify in the skill test.

Skill Test Details

Tie-Breaker Rules

1. Assistant/UDC: higher marks in General Intelligence & Reasoning.
2. JPA/Stenographer: higher marks in English Language & Comprehension.
3. If still tied: the older candidate ranks higher.

ISRO Assistant & UDC Vacancy 2026

Eligibility Criteria

Conversion of CGPA into percentage is not permitted when checking eligibility.

Age Limit

The minimum age is 18 years. Age is counted as on the application closing date.

Application Fee and Refund

• ₹500 for Assistant/UDC posts.
• ₹500 for JPA/Stenographer posts.
• ₹1,000 if applying for both categories.
• Women, SC, ST, PwBD and Ex-Servicemen candidates who appear in the written test are eligible for a full refund.
• Other candidates who appear in the written test receive a partial refund of ₹400.
• No refund is considered for candidates who do not appear in the written test.

Important Instructions for Candidates

• Only Indian nationals can apply.
• Selected candidates can be posted to any ISRO/Department of Space centre or unit and may be transferred.
• No travel allowance is paid for the written test.
• Candidates attending the skill test are reimbursed to-and-fro second-class train fare.
• Canvassing in any form leads to disqualification.
• Do not trust fake offers of appointment in ISRO.

Also Read: GSSSB Laboratory Assistant Answer Key 2026

ISRO Assistant and UDC Final Answer Key 2026 - Important Links

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