Quick answer: The Vikram Sarabhai Space Centre (VSSC), ISRO has released the official Revised / Final Answer Key along with candidate response sheets on 30 October 2026 for the Computer Based Test held on 16 and 17 September 2026 (Advt Nos. 332, 334, 336, and 337). Candidates who appeared for Technician - 'B', Draughtsman - 'B', and other technical posts can log in to the official portal now to check their evaluated responses and calculate their finalized CBT scores.
What was announced
Vikram Sarabhai Space Centre (VSSC) has formally concluded the post-exam objection scrutiny for technical posts advertised under notifications Advt No. 332, Advt No. 334, Advt No. 336, and Advt No. 337. The preliminary answer keys were previously open to candidate challenges, and after an expert committee review of all submitted representations, the final evaluated key has been published.
Candidates who sat for the online Computer Based Test (CBT) on 16 and 17 September 2026 can now view their individual response sheets against the revised answer keys. This evaluated score will form the baseline for the upcoming skill test shortlisting. If you are tracking your technical recruitment scores across Indian space agency exams, cross-referencing standard questions with solved solutions on our ISRO Mechanical previous year papers interface helps clarify ambiguous engineering questions and challenge formulations.
The table below summarizes all explicit facts provided in the official release, along with details that remain pending:
| Particulars | Details from the Notice |
|---|---|
| Recruiting Organization | Vikram Sarabhai Space Centre (VSSC), ISRO |
| Advertisement Numbers | Advt No. 332, 334, 336 & 337 |
| Posts Covered | Technician - 'B', Draughtsman - 'B' & Other Technical Posts |
| CBT Examination Dates | 16 & 17 September 2026 |
| Revised Answer Key Release Date | 30 October 2026 |
| Official Download Link | https://www.vssc.gov.in/RevisedAnswerKey.html |
| Skill Test / Trade Test Dates | Not announced in the notice |
| Minimum Cut-Off Marks | Not announced in the notice |
| Final Merit List Publication Date | Not announced in the notice |
How to download / check / what to do next
Candidates can access their response sheet and the finalized master keys by visiting the official VSSC examination link. Follow these steps to verify your score:
- Navigate to the official VSSC portal page at https://www.vssc.gov.in/RevisedAnswerKey.html.
- Locate the login section corresponding to your respective advertisement number (Advt No. 332, 334, 336, or 337).
- Enter your required login details, such as your registration number, roll number, or date of birth (specific login parameters are not announced in the notice snippet and should be viewed directly on the portal).
- Access your recorded response sheet to compare your marked answers against the revised key.
- Save or print a digital copy of your evaluated response sheet for future reference during document verification and the trade/skill test.
Eligibility, pattern or key details
Because this announcement relates strictly to the post-examination answer key update, general eligibility norms and initial application terms are not modified. Keep the following technical aspects in mind while reviewing your response sheet:
- Finality of the Key: This is a revised / final key prepared after reviewing objections. The notice does not indicate any provision for submitting fresh challenges or re-evaluations.
- Applicable Posts: The released keys cater to technical cadres, predominantly Technician - 'B', Draughtsman - 'B', and allied technical roles tested across the 16 and 17 September 2026 sessions.
- Trade Test Qualification: Candidates clearing the normalized threshold will move to the hands-on Trade / Skill Test phase. Exact shortlisting ratios and dates are not announced in the notice.
- Marking Methodology: Marks will be computed based on the revised status of any questions that were dropped, modified, or awarded full marks during the scrutiny phase.
Use this phase well: practise real exam papers
Whether your calculated score safely puts you into the skill test bracket or you are refocusing your preparation on upcoming space agency and central engineering recruitments, analyzing previous papers is the most reliable way to understand how ISRO tests practical trade concepts and core engineering mechanics.
For candidates preparing for upcoming degree-level and diploma recruitments such as the ISRO Centralised Recruitment Board or Technical Assistant exams, exam temperament is best developed on authentic CBT interfaces. You can practice full-length, timed tests on CMB Space:
- Test your foundational concepts in fluid mechanics, thermal engineering, and workshop technology on our dedicated ISRO Mechanical CBT practice portal with detailed step-by-step solutions.
- Aspirants also preparing for technical graduate-level entrance tests can attempt full previous year papers on our GATE XE practice papers platform or test their propulsion and aerodynamics problem sets on our GATE Aerospace (AE) practice hub.
Related guides
To understand the complete progression of ISRO recruitments, selection tiers, and how marks translate into final appointments across VSSC, URSC, and LPSC centres, review our comprehensive breakdown on how ISRO recruitment and exam evaluation work. Candidates targeting upcoming competitive engineering schedules can also browse our updated syllabus guides and year-wise question archives on the GATE Engineering Sciences preparation portal.
Source and what to check
This update is issued directly by Vikram Sarabhai Space Centre, Thiruvananthapuram. The official response sheet and final key download link can be accessed at https://www.vssc.gov.in/RevisedAnswerKey.html.
Candidates must verify all shift timings, post-specific scores, and trade test notifications directly on the official VSSC website.