Last updated: October 2, 2026 at 3:47 PM
Only three days separate this answer key from its objection deadline. APSC put the provisional keys online on 28.09.2026 for the Assistant Engineer screening test held on 27.09.2026, and claims close on 01.10.2026. Provisional means this is the first version of the key — it can still change if candidates raise valid objections. Four papers are covered: General Studies, plus Civil, Mechanical and Chemical Engineering. Each paper is printed in four series (A, B, C and D), so find the series letter on your OMR answer sheet before you start matching, or you will be checking your answers against the wrong version of the paper.
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Answer Key Overview
| Field | Details |
|---|---|
| Post Name | Assistant Engineer (Civil / Mechanical / Chemical) |
| Organization | Assam Public Service Commission (APSC), for the Public Health Engineering Department, Assam |
| Notification / Advertisement No. | Advt. No. 31/2025 dated 09.09.2025. Answer key notice No. 60PSC/CON/Exam-22/2025-2026 dated 28.09.2026 |
| Location | Assam |
| Exam Name | Screening Test, OMR based, MCQ type |
| Date of Examination | 27.09.2026 |
| Answer Key Type | Provisional (the first version, which can still change) |
| Papers Released | Paper-I General Studies, and Paper-II in Civil, Mechanical and Chemical Engineering |
| Series Covered | A, B, C and D for every paper |
| Marks and Duration | 100 marks and 2 hours per paper |
| Objection Window | Open now, closes 01.10.2026 |
| Objection Fee | No fee stated in the notification |
| How to Object | Online only, through the APSC Answer Key Objection portal |
| Official Notification | Download Notification PDF |
| Official Website | apsc.nic.in |
Important Dates
| Event | Date |
|---|---|
| Advertisement issued | 09.09.2025 |
| Screening Test held | 27.09.2026 |
| Provisional answer keys uploaded | 28.09.2026 |
| Last date to submit objections | 01.10.2026 |
Answer Key Downloads
| Paper | Subject | Series | Download |
|---|---|---|---|
| Paper-I | General Studies | A, B, C, D | Download PDF |
| Paper-II | Civil Engineering | A, B, C, D | Download PDF |
| Paper-II | Mechanical Engineering | A, B, C, D | Download PDF |
| Paper-II | Chemical Engineering | A, B, C, D | Download PDF |
Each PDF holds four pages, one per series. The answers differ from page to page because the questions are shuffled between series, so the page you need is the one matching the letter on your own OMR sheet.
Objection Fee
The notification sets no fee for raising an objection, so nothing is charged per question. There is no refund clause either, because there is nothing to refund.
How to Raise an Objection
- Download the answer key for your paper from the table above, or from the Answer Keys section of apsc.nic.in.
- Check your OMR answer sheet for the series letter printed on it — A, B, C or D — and open only that page of the PDF.
- Match your answers question by question and write down every question number you disagree with.
- Open the Answer Key Objection portal and log in. You will need the advertisement number, the post name, your roll number, your date of birth and your registered mobile number.
- Submit each claim with an authentic source that backs it up, on or before 01.10.2026.
Note: APSC will not consider an objection sent by email or as a hard copy, and it will not accept a website reference or an unnamed document as your source.
Important Links
| Link | Open |
|---|---|
| Answer Key — Paper-I General Studies | Download PDF |
| Answer Key — Paper-II Civil Engineering | Download PDF |
| Answer Key — Paper-II Mechanical Engineering | Download PDF |
| Answer Key — Paper-II Chemical Engineering | Download PDF |
| Official Notification (PDF) | Download Notification |
| Submit Your Objection | Open Objection Portal |
| Official Website | apsc.nic.in |
| Join Telegram Channel | Join Telegram Channel |
| Join WhatsApp Channel | Join WhatsApp Channel |
Common Mistakes to Avoid
- Checking your answers against the wrong series. The four series carry the same questions in a different order, so page A will not match a Series C sheet.
- Raising a claim with nothing to back it up. The notification says plainly that an objection without an authentic source will not be entertained.
- Citing a website as your proof. APSC rules that out by name, along with any document you do not identify properly.
- Emailing your objection or posting a hard copy. Neither will be looked at — the online portal is the only route.
- Treating this key as the final word. It is provisional, and answers can change once valid objections are considered.
- Leaving it until the last evening. The window closes on 01.10.2026, and a portal problem on the final day is your problem, not an extension.
Frequently Asked Questions
1. When did APSC release this answer key?
On 28.09.2026, the day after the screening test was held on 27.09.2026.
2. Is this the final answer key?
No, it is provisional, which means APSC can still change answers if candidates raise objections that hold up.
3. What is the last date to raise an objection?
01.10.2026 — claims submitted after that date will not be taken up.
4. Is there any fee for raising an objection?
No, the notification does not mention a fee for any category or per question.
5. What do I need to log in to the objection portal?
Your advertisement number and post name from the dropdowns, plus your roll number, date of birth and registered mobile number.
6. Which papers have answer keys out?
All four — Paper-I General Studies, and Paper-II in Civil, Mechanical and Chemical Engineering.
7. How do I know which series to check?
The series letter is printed on your OMR answer sheet, and each PDF has one page per series.
8. What counts as an authentic source?
A named, identifiable publication such as a standard textbook — APSC specifically will not accept a website link or a document you leave unspecified.
Disclaimer: The information above has been compiled from the official notification for the convenience of job seekers. Candidates are advised to verify all details from the official website before applying.
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