RRB Ministerial & Isolated Categories Provisional Answer Key 2026 was released on 31 July 2026 by the Railway Recruitment Boards. The objection window runs until 7 August 2026 (11:55 PM), and candidates can challenge the provisional key by paying Rs. 50 per question. This article is based on the official answer key notice released by the Railway Recruitment Boards (RRBs) and covers everything you need to download your response sheet, calculate your estimated score, and decide whether an objection is worth filing.
The provisional answer key allows candidates sitting for CEN 08/2025 to cross-check their CBT responses against the recorded answers before the final key is published. Your estimated score using the provisional key is not your final result – it shifts once the RRB reviews valid objections.
Answer Key – Key Details
| Detail | Information |
|---|---|
| Organization | Railway Recruitment Boards (RRBs) |
| Exam Name | Ministerial & Isolated Categories Examination 2026 |
| Exam Stage | Computer-Based Test (CBT) |
| Exam Dates | 14-15 July 2026 |
| Answer Key Type | Provisional |
| Release Date | 31/07/2026 |
| Objection Window Opens | 31/07/2026 (11:55 PM) |
| Objection Window Closes | 07/08/2026 (11:55 PM) |
| Objection Fee | Rs. 50 per question + bank charges |
| Official Website | https://indianrailways.gov.in/ |
Calculate Your Probable Score
The RRB Ministerial & Isolated Categories CBT is 100 marks for 100 questions. The marking scheme is:
- Correct Answer: +1 mark
- Incorrect Answer: −0.33 mark (one-third deducted)
- Unattempted Question: 0 marks
Worked example: If you attempted 95 questions with 78 correct and 17 wrong:
Score = (78 × 1) − (17 × 0.33) = 78 − 5.61 = 72.39 marks
Compare your calculated score against the expected cut-off for your category (usually available on the official notification). This gives you a realistic estimate before the final key is released.
Should You Challenge This Answer Key?
You have until 7 August 2026 (11:55 PM) to raise objections. At Rs. 50 per question, raising three objections costs Rs. 150 – and that fee is non-refundable even if all three are rejected.
Raise an objection if:
- The official answer contradicts the question text or has a printing error.
- You have a specific NCERT textbook page, government publication, or court ruling that contradicts the key.
- Multiple authoritative sources (textbooks, academic journals, official handbooks) agree the given answer is incorrect.
Do NOT raise an objection if:
- You are unsure of the correct answer or guessing.
- You saw a different answer on coaching portals, YouTube, or social media without a verified textbook source.
- Your coaching institute disagrees but provides no published reference.
Objections go to subject experts. Only challenges backed by credible published references are accepted. Your fee is gone regardless of the outcome.
How to Challenge the RRB MI Answer Key 2026
- Log in to the objection portal using your Registration Number and Date of Birth/Password.
- Select “Raise Objection” or “Challenge Answer Key” from your dashboard.
- Choose the question ID and the answer option you believe is incorrect.
- Upload a supporting document – a photograph of the relevant textbook page, an official PDF, or a link to a government/academic source showing the correct answer.
- Pay the objection fee of Rs. 50 per question using Debit Card, Credit Card, UPI, or Net Banking. Bank charges apply.
- Submit the form and download your acknowledgement receipt for records.
Objections submitted after 7 August 2026 (11:55 PM), by email, or by post will not be accepted. The fee is non-refundable, even if your objection is rejected.
What Happens Next
- 31 July – 7 August 2026: Objection window open. Candidates submit challenges with supporting documents.
- After 7 August 2026: RRBs collate objections and forward them to subject experts for review.
- Within 2-3 weeks (typically mid-August): Final Answer Key released after expert review of valid objections.
- Final Result: Declared based on the final answer key; your marks are recalculated using corrected answers.
- Merit List & Next Stage: Qualified candidates called for Document Verification (DV) and Medical Examination (ME).
Important Dates
| Event | Date |
|---|---|
| CBT Exam Dates | 14-15 July 2026 |
| Provisional Answer Key Release | 31/07/2026 |
| Objection Window Opens | 31/07/2026 (11:55 PM) |
| Objection Window Closes | 07/08/2026 (11:55 PM) |
| Final Answer Key (expected) | Mid-August 2026 |
| Final Result Declaration | As per official notification |
Vacancy & Exam Overview
CEN 08/2025 covers 312 vacancies across Ministerial and Isolated Category posts, including Junior Translator, Staff and Welfare Inspector, Chief Law Assistant, Lab Assistant Grade III, Senior Publicity Inspector, and Scientific Assistant positions. Requirements vary by post – refer to the official CEN 08/2025 notification PDF on the RRB website for the complete post-wise and region-wise vacancy breakup.
Important Links
| Link | URL |
|---|---|
| Download Provisional Answer Key | Click Here |
| Submit Objections | Click Here |
Frequently Asked Questions (FAQs)
Q1. What is the difference between the provisional and final answer key?
Ans. The provisional answer key is released immediately after the exam and allows candidates to estimate their score. The final answer key is released after the RRB reviews all valid objections received during the objection window and incorporates expert feedback. Your final marks are calculated using the final key, not the provisional one.
Q2. Is the objection fee refundable?
Ans. No. The objection fee of Rs. 50 per question is non-refundable. It is refunded only if your objection is found valid and the answer is corrected in the final key – in that case, the fee minus bank charges is returned. If your objection is rejected, the fee is forfeited.
Q3. How many questions can I raise objections for?
Ans. There is no stated limit on the number of objections you can raise. However, each objection costs Rs. 50 and requires supporting documentation. Raise objections only for questions where you have a credible published reference contradicting the key.
Q4. What counts as valid supporting documentation for an objection?
Ans. Valid documentation includes a photograph or PDF of the relevant page from an NCERT textbook, government publication, academic journal, or official handbook. Social media posts, coaching institute notes, and YouTube videos without a published source do not count. The document must clearly show the alternative answer and its authoritative source.
Q5. Will my final score change if my objection is accepted?
Ans. Yes. If your objection is accepted, the RRB corrects that question’s answer in the final key. Your final score is recalculated: if you had marked the now-corrected answer, you gain +1 mark; if the previous answer was wrong and the new one is right, your penalty (−0.33) is removed and +1 is added, raising your score by 1.33 marks.
Q6. When will the final result be declared?
Ans. The final result is typically declared 2-3 weeks after the objection window closes, once subject experts have reviewed all valid objections and the final key is published. Exact dates are announced on the official RRB website and regional portals.
Q7. Can I log in to raise objections from a mobile phone?
Ans. Yes. The RRB objection portal is accessible from both desktop and mobile browsers. Ensure you have your Registration Number, Date of Birth/Password, and a clear photograph or PDF of your supporting document ready before you begin.
Q8. What should I do if I forget my login password?
Ans. Visit the RRB login page and click “Forgot Password.” You will be prompted to enter your Registration Number and Date of Birth to receive a password reset link via email or SMS. Use that link to set a new password within the time frame provided.
