Lab Assistant (Prayogshala Sahayak)
The Rajasthan Staff Selection Board (RSSB) has released the RSSB Lab Assistant Answer Key 2026 for the written exam held on 9 and 10 May 2026 under Advertisement No. 05/2026 for 804 posts. The provisional answer key for both Geography and Science papers was published on 15 June 2026. You can download your answer key PDF from the links above, match your answers, and get a fair idea of your marks before the result. The objection window (16 to 18 June 2026, fee 100 rupees per question) is now closed.
| Application Start Date | 27 January 2026 |
| Last Date to Apply | 25 February 2026 |
| Exam Date (Geography) | 09 May 2026 |
| Exam Date (Science) | 10 May 2026 |
| Answer Key Released | 15 June 2026 |
| Objection Window | 16 June to 18 June 2026 (closed) |
| Result Date | To be announced |
| General / EWS / OBC (Creamy Layer) | Rs. 600 |
| EWS / OBC (Non-Creamy Layer) / SC / ST / PwD (Rajasthan) | Rs. 400 |
| Form Correction Charge | Rs. 300 |
| Objection Fee (per question) | Rs. 100 |
⚠️ KadamSetu is a private information site, not a government body — every detail here is verified against the official source (linked on each item above) and date-stamped. Cross-check the final details on the official notice, and never pay anyone to apply. Your personal scorecard / marks stay on the official login; we never host those.
- 7 Jul 2026 Answer key published
RSSB Lab Assistant Answer Key 2026 Overview
The Rajasthan Staff Selection Board (RSSB), earlier known as RSMSSB (Rajasthan Subordinate and Ministerial Services Selection Board), has released the provisional answer key for the Lab Assistant (Prayogshala Sahayak) exam under Advertisement No. 05/2026. The written exam was held on 9 and 10 May 2026 across Rajasthan to fill 804 posts. The answer key came out on 15 June 2026 for both the Geography and Science papers. With the answer key in hand, you can match your answers and get a good idea of your marks well before the final result.
Exam and Papers
The exam was held in offline (pen and paper) mode with multiple-choice questions (MCQ). The Geography paper was held on 9 May 2026 and the Science paper on 10 May 2026. RSSB released the answer keys for these papers separately, so download the key that matches your subject.
Marking Scheme
| Paper | Marks per Correct Answer | Negative Marking |
|---|---|---|
| Science | 2 marks | 0.33 mark cut per wrong answer |
| Geography | 1 mark | 0.33 mark cut per wrong answer |
Note: there is a fifth option on the OMR (answer) sheet. If a candidate leaves the fifth circle blank for a question, 0.33 marks are cut for that question too. So fill the correct circle carefully.
Vacancy Details
| Post Name | Advertisement No. | Total Posts |
|---|---|---|
| Lab Assistant (Prayogshala Sahayak) | 05/2026 | 804 |
Eligibility (in Short)
To apply, a candidate needed to have passed Class 12 (Senior Secondary) in the Science stream with the required subjects, such as Physics, Chemistry and Biology, or Physics, Chemistry and Mathematics, from a recognised board, along with a basic computer certificate. The exact subject rule depends on the department. The age limit was 18 to 40 years (counted as on 1 January 2027), with age relaxation for reserved categories as per RSSB rules.
Salary
The Lab Assistant post falls under the 7th Pay Commission Pay Matrix, at Level 5 or Level 8 depending on the post and department. The exact basic pay, allowances and in-hand salary are stated in the official notification, so please refer to the official notice for the final figures.
How to Check Your RSSB Lab Assistant Answer Key
- Click the Download Answer Key link in the Important Links table above. This is our fast copy of the official RSSB answer key.
- Open the PDF for your paper (Geography or Science) and for your correct question paper set or series.
- Match your answer for every question with the answer given in the key.
- Count your correct and wrong answers, then apply the marking scheme above to estimate your score.
- To see your own response sheet or to log in for any candidate service, use the SSO Rajasthan login link. Always cross-check the final answer key on the official notice for the last word.
What Happens Next
The objection window (16 to 18 June 2026) is now closed. RSSB will review all objections raised by candidates and then release the final answer key. The result and merit list are prepared using this final answer key, followed by document verification. RSSB has not yet announced the result date. We will update this page as soon as the result is out.
❓ Frequently Asked Questions
When was the RSSB Lab Assistant Answer Key 2026 released?
The Rajasthan Staff Selection Board (RSSB) released the provisional answer key on 15 June 2026. Separate answer keys were published for the Geography paper (9 May 2026) and the Science paper (10 May 2026).
How can I download the RSSB Lab Assistant answer key?
Use the Download Answer Key link above to get your PDF fast, even when the government server is busy. It is our copy of the official RSSB answer key. Match your responses subject by subject to estimate your score.
What is the marking scheme for this exam?
For the Science paper, each correct answer gives 2 marks. For the Geography paper, each correct answer gives 1 mark. In both papers, 0.33 marks (one-third of a mark) are cut for every wrong answer. Marks are also cut if the fifth circle on the OMR sheet is not filled.
Can I still raise an objection against the answer key?
No. The objection window was open from 16 June to 18 June 2026 and is now closed. Candidates who objected paid 100 rupees for each question they challenged. This fee was non-refundable.
How many posts are there in RSSB Lab Assistant 2026?
There are 804 Lab Assistant (Prayogshala Sahayak) posts under Advertisement No. 05/2026. The written exam decides the merit list, which is followed by document verification.
When will the RSSB Lab Assistant result come out?
RSSB has not yet announced the result date. The final answer key and result are prepared after the board reviews all objections. Keep checking this page and the official RSSB website for the update.