CSIR-National Aerospace Laboratories (CSIR-NAL), Bengaluru, has released the CSIR-NAL MTS Final Answer Key 2026 for the Multi-Tasking Staff written examination. The notification is dated 13 November 2026 (No. A12024/11/2026-Rectt.) and is available on nal.res.in. The examination was held on 31 October 2026 at MSRIT, Bengaluru, under Advertisement No. 11/2026.
The final key carries the answers to all 150 questions in Annexure-I. CSIR-NAL has also disposed of all representations received against the provisional key, so no further challenges will be entertained. Candidates can read how the exam was conducted in our CSIR-NAL MTS admit card article. Candidates should check all details in the article below.
Information verified from the official CSIR-NAL notification No. A12024/11/2026-Rectt. dated 13 November 2026. Last verified: 13 November 2026.
CSIR-NAL has declared the final answer key for the MTS written exam held on 31 October 2026. Questions 3 and 77 carry three marks for every candidate. Questions 113 and 140 accept two options each. All representations stand disposed of.

Quick Summary of CSIR-NAL MTS Final Answer Key 2026
| Detail | Information |
|---|---|
| Organisation | CSIR-National Aerospace Laboratories (CSIR-NAL), Bengaluru |
| Post | Multi-Tasking Staff (MTS) |
| Advt. No. | 11/2026 |
| Notice No. | A12024/11/2026-Rectt. |
| Notice Date | 13 November 2026 |
| Exam Date | 31 October 2026 |
| Exam Venue | MSRIT, Bengaluru |
| Document | Final answer key (Annexure-I), 2 pages |
| Questions | 150 |
| Challenges | Closed, all representations disposed of |
| Official Website | nal.res.in |
What the CSIR-NAL final answer key notice says
CSIR-NAL first notified the provisional answer key on 31 October 2026 and invited representations from candidates. After considering every representation and objection received, the laboratory has now notified the final answer key as Annexure-I. The notice is signed by the Senior Controller of Administration.
The notice states that all representations and challenges stand disposed of. This means the CSIR-NAL MTS final answer key cannot be disputed again, and candidates should use it to work out their expected marks.
This is added context, not part of the official notice. Confirm with the official website.
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Special cases in the CSIR-NAL MTS final answer key 2026
Four questions in the final key need attention. Two give marks to everyone, and two accept more than one option. Candidates should check these before they calculate their score.
| Question | Section | Key / Rule |
|---|---|---|
| Q.No. 3 | General Intelligence | Three marks are given to all candidates |
| Q.No. 77 | General Awareness | Three marks given to all candidates |
| Q.No. 113 | English Language | A and B both accepted. Marks for candidates who attempted option A or option B |
| Q.No. 140 | English Language | A and D both accepted. Marks for candidates who attempted option A or option D |
Sections and question numbers in the final answer key
The key is laid out in four subject blocks, with 150 questions in total.
| Subject | Question Numbers | Questions |
|---|---|---|
| General Intelligence | 1 to 25 | 25 |
| Quantitative Aptitude | 26 to 50 | 25 |
| General Awareness | 51 to 100 | 50 |
| English Language | 101 to 150 | 50 |
For example, the key for Question 1 is A, Question 2 is D, and Questions 4 to 10 are all A. The key for Question 26 is D, and for Question 51 is B. The full list is in the official PDF.
How to check the CSIR-NAL MTS final answer key and calculate marks
- Download the final answer key PDF from nal.res.in. The direct link is in the Important Links table below.
- Match your marked OMR answers with the key, one question at a time, from Question 1 to Question 150.
- Apply the special rules for Questions 3, 77, 113 and 140.
- Give three marks for each correct answer and deduct one mark for each wrong answer, as set in the exam pattern.
- Add the marks from the four sections to get the expected total out of 450.
The pattern of three marks for a correct answer and one negative mark for a wrong answer comes from the earlier CSIR-NAL exam notification, not from this notice. Candidates should save a copy of the PDF on the same day, in case the file on the website is replaced.
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Can candidates still challenge the final answer key?
No. The notice says all representations and challenges stand disposed of, and no further representations will be entertained. Candidates who want to know about the earlier stages can read our CSIR-NAL MTS Recruitment 2026 article, which has the 6-post vacancy details. More key releases for other exams are in our answer keys section.
What happens after the final answer key
The notice does not give a result date or the next stage. CSIR-NAL will announce further steps on its official website, so candidates should visit nal.res.in regularly. Until then, candidates can use the final key to estimate their marks.
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Important Links
| Details | Link |
|---|---|
| CSIR-NAL MTS Final Answer Key 2026 | Download final answer key (PDF) |
| Official website | Visit the CSIR-NAL official website |
| Admit card article | CSIR-NAL MTS Admit Card 2026 |
| Recruitment article | CSIR-NAL MTS Recruitment 2026 |
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FAQs
Is the CSIR-NAL MTS final answer key 2026 out?
Yes. CSIR-NAL released the final answer key on 13 November 2026 for the Multi-Tasking Staff written examination held on 31 October 2026. The direct link is in the Important Links table above.
Which questions carry marks for all candidates?
Question 3 in General Intelligence and Question 77 in General Awareness. The notice says three marks each will be given to all candidates.
How are Questions 113 and 140 marked?
Question 113 accepts options A and B, and Question 140 accepts options A and D. Marks go to candidates who attempted either of the two accepted options.
Can I challenge the CSIR-NAL MTS final answer key?
No. All representations and challenges stand disposed of, and CSIR-NAL will not entertain any further representation on the key.

