ISRO Final Answer Key 2026 Out, Check UDC, Assistant Posts Response Sheet PDF and Objection Link

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The Indian Space Research Organisation (ISRO) has released the ISRO UDC and Assistant Final Answer Key 2026 on 28 October 2026 through its official website. The final answer key for the Computer-Based Test (CBT) is now available on the ISRO recruitment portal for candidates who appeared in the examination.

The recruitment drive aims to fill vacancies for Assistant, Junior Personal Assistant (JPA), Upper Division Clerk (UDC), and Stenographer posts under Advertisement No. ISRO:ICRB:01(A-JPA):2026.

ISRO Final Answer Key 2026 Out

The ISRO 2026 UDC and Assistant Final Answer Key has been released on the official website for candidates who appeared in the Computer-Based Test (CBT) held on 21st September 2026. Candidates can visit the official ISRO portal to check the final answer key and download their response sheets. The answer key helps candidates verify their answers against the officially accepted responses and estimate their probable scores.

ISRO Final Answer Key: Highlights

Particular	Details
Organisation	Indian Space Research Organisation
Recruitment Board	ISRO Centralised Recruitment Board
Posts	Assistant, JPA, UDC and Stenographer
Advertisement No.	ISRO:ICRB:01(A-JPA):2026
CBT Date	21 September 2026
Final Answer Key Date	28 October 2026
Mode	Online
Response Sheet	Available
Objection Facility	Yes
Objection Fee	₹100 per question*
Official Website	isro.gov.in

ISRO UDC Answer Key 2026 Link

The official website has activated the download link for the ISRO UDC Final Answer Key 2026. Candidates who appeared for the exam can check the final answer key. Candidates are advised to keep their login credentials ready and check the official website regularly for updates regarding the result and further stages of the recruitment process.

Download ISRO Final Answer Key 2026 Direct Link (Active)

How to Download ISRO UDC and Assistant Answer Key 2026?

Visit the official ISRO website at isro.gov.in.
Open the Careers section.
Locate the recruitment notice for Assistants, Junior Personal Assistants, Upper Division Clerks and Stenographers.
Click the link for the final answer key/response sheet.
Enter the required login details.
Submit the information.
Check the answer key along with the recorded responses.
Download and save the response sheet for calculating the expected score.

ISRO Exam Answer Key 2026 Out! Share Details With Us

What Will Be Available With the ISRO Answer Key?

Candidates should look for the following information after logging into the answer-key portal:

Candidate details
Exam details
Question ID
Candidate’s response
Correct answer
Question/shift details
Objection instructions

How to Calculate Expected Marks?

Candidates can use the response sheet and provisional answer key to calculate their estimated marks. The basic process is:

(Correct Responses × Marks for Correct Answer) − (Incorrect Responses × Negative Marks) = Estimated Score

What Happens After Provisional Answer Key?

Candidates get an opportunity to point out discrepancies through the prescribed objection mechanism. Once all the objections have been reviewed, the final answer key will be released. This final answer key will be used in the preparation of the ISRO UDC and Assistant Result 2026.

FAQs

When will the ISRO UDC and Assistant Answer Key 2026 be released?

The ISRO UDC and Assistant Answer Key 2026 has been released on September 25, 2026.

When was the ISRO UDC and Assistant CBT conducted?

The Computer-Based Test was conducted on September 21, 2026.

Where can I check the ISRO UDC Answer Key 2026?

Candidates can check the final answer key through the official ISRO website, isro.gov.in.

Will the ISRO Assistant Answer Key be released along with the response sheet?

The final answer key has been issued after reviewing all the objections.

Can I challenge the ISRO UDC Answer Key 2026?

Yes. Candidates can raise objections against disputed answers during the objection window before 28 September 2026.

What is the ISRO Answer Key objection fee?

The current reported objection fee is ₹100 per question, plus applicable bank charges.

Can I challenge more than one question?

Candidates can challenge the questions permitted under the objection facility, subject to the instructions and applicable fee.

What documents are required for raising an objection?

Candidates should keep relevant supporting evidence or references ready if the objection portal asks for them.

How can I calculate my ISRO UDC expected score?

Compare your responses with the official answer key and apply the prescribed marks for correct and incorrect responses.

What is the ISRO UDC exam date 2026?

The ISRO UDC/Assistant/JPA/Stenographer CBT was held on September 21, 2026.

What is the ISRO recruitment advertisement number?

The recruitment is being conducted under ISRO:ICRB:01(A-JPA):2026.

Which posts are covered under ISRO ICRB Recruitment 2026?

The recruitment covers Assistant, Junior Personal Assistant, Upper Division Clerk and Stenographer posts.

Is the ISRO UDC Answer Key PDF available?

The final answer key is now available online. Candidates should download it from the official ISRO portal.

What is the difference between provisional and final answer key?

The provisional key is released first and can be challenged. After examining valid objections, ISRO may issue the final answer key.

What happens after the ISRO answer key objection window?

ISRO will examine the objections received and may make changes before the final answer key and result stages.

What should I do after downloading the ISRO Answer Key 2026?

Compare your responses, calculate your expected marks, identify any genuine discrepancies and raise objections within the prescribed window if necessary.