ISRO VSSC Revised Answer Key 2026 Out - Download Technician-B and Other Posts CBT Response Sheet

About the revised answer key

The Vikram Sarabhai Space Centre (VSSC), Indian Space Research Organisation (ISRO), has published the revised answer key and candidate response details through the post-objection management portal update dated 29 October 2026. The update relates to the Computer-Based Test (CBT) conducted on 16 and 17 September 2026 under Advertisement Nos. 332, 334, 336 and 337. Candidates can access the revised answer key and response sheet using their VSSC registration number at the official candidate login portal.

Posts covered

• Light Vehicle Driver-A (Advt. No. 332)
• Technician-B, Draughtsman-B (Mechanical) and Pharmacist-A (Advt. No. 334)
• Scientist/Engineer-SC (Advt. No. 336)
• Post Graduate Teacher (Computer Science) (Advt. No. 337)

Technician-B trades in the CBT

• Fitter, Machinist, Welder, Carpenter
• Electrician, Motor Mechanic Vehicle / Mechanic Diesel
• Electronic Mechanic, Turner, Photography
• Electroplater, Mechanic Refrigeration and Air Conditioning

Each trade and post code has its own question paper, so candidates must compare their responses with the key for their specific trade and post code.

How to check the revised answer key

1. Open the official VSSC candidate login portal using the link in the Important Links section below.
2. Enter your VSSC registration number as the login ID and your password.
3. Complete any additional verification shown on the portal.
4. Open the candidate response and answer-key section for your post code.
5. Compare the revised answers with the provisional key shared earlier.
6. Save the answer key or response details for future reference.

Important dates

• CBT schedule notice: 4 September 2026
• Admit card download notice: 12 September 2026
• Computer-Based Test: 16 and 17 September 2026
• Initial objection management portal notice: 23 September 2026
• Post-objection portal update (revised key): 29 October 2026
• Reported revised-key access period: 29 October to 2 November 2026

How to calculate marks

1. Identify your examination post code and question paper.
2. Compare your recorded responses with the published answers.
3. Count the questions answered correctly and incorrectly.
4. Check whether any accepted answers changed after the objection process.
5. Apply the marking scheme prescribed for your post.

The marks per question and negative marking rules may differ by post, so do not apply an assumed marking scheme without checking the official examination instructions.

Note

The notice dated 29 October 2026 concerns the post-objection portal; a fresh objection window has not been independently confirmed. Follow the instructions displayed on the official portal rather than assuming that another challenge window is available. Publication of the revised answer key does not by itself constitute declaration of the CBT result or final selection.

ISRO VSSC Revised Answer Key 2026 - Important Links