RRB Isolated Categories Answer Key 2026 Out, Download CBT Exam Response Sheet PDF

The RRB Isolated Categories Answer Key 2026 was published on 31st July 2026 for the Computer-Based Test (CBT) held under CEN 08/2025. Using the official answer key, candidates can thoroughly cross-verify their marked responses against the correct answers and estimate their tentative scores prior to final result declarations.

RRB Isolated Categories Answer Key 2026 Out

The Railway Recruitment Board successfully administered the RRB Isolated Categories Online Exam under CEN 08/2025 on 14th and 15th July 2026, and the corresponding answer key has now been released featuring both recorded and correct responses. Aspirants who appeared for the CBT exam can effectively evaluate their performance by reviewing their attempted answers side-by-side with the official keys.

RRB Isolated Categories Answer Key 2026 Download Link

The official RRB Isolated Categories Answer Key portal is now active on the official website www.rrb.indianrailways.gov.in and will remain accessible until 5th July 2026. Candidates are required to log in securely using their unique registration number and date of birth.

Note: The official answer key link was officially activated on 31st July 2026 at 11:55 PM. 

RRB Isolated Categories Result 2026 – Click to Check

How to Download Railway  Isolated Categories Answer Key 2026?

To successfully download the RRB Ministerial and Isolated Answer Key 2026, candidates can follow the step-by-step instructions detailed below.

1. Go to the official website of the Railway Recruitment Board (RRB), www.rrbcdg.gov.in.
2. On the Homepage, search for CEN 08/2025: CBT Exam responses & objection tracker.
3. Click on the link and enter the required details such as Registration Number and Date of Birth.
4. Enter the Captcha code and click on the login button.
5. The answer key is displayed on the screen.
6. Download the RRB Isolated Categories Answer Key 2026 and check the responses carefully.

Details Mentioned on the RRB Isolated Categories Response Sheet 2026

Upon successfully downloading the answer key, candidates should carefully verify all details printed on their response sheet PDF:

• Candidate’s Name
• Registration Number
• Exam Date and Shift
• Name of the RRB Zone
• Question ID for each question
• Question Paper
• Options provided for each question
• Candidate’s selected response
• Correct Option
• Status of each question (Correct / Incorrect / Unattempted)

Raise Objection Process

Alongside releasing the answer key, the Railway Recruitment Board has opened a dedicated objection window for candidates dissatisfied with any official answers. Candidates can submit objections from 31st July to 8th August 2026 by paying a fee of Rs. 50/-. Proper documentary proof must be provided to substantiate any raised challenges.

Steps to Raise Objections Against RRB Isolated Categories Answer Key 2026

Candidates can challenge the provisional answer key seamlessly by adhering to the straightforward steps outlined below:

1. On the homepage of the official website, click on “CEN-08/2025 (NTPC Categories) – Link for viewing of Tentative CBT 1 Isolated Categories Answer Key & Response Sheet.”
2. Now login with your credentials and click on “Raise Objections”.
3. Choose the specific question number and set (e.g., A/B/C/D) you believe has an error in the provisional answer key.
4. Submit your objection with a clear explanation and valid supporting documents or references to justify your claim. Ensure the evidence is relevant and concise.
5. Pay a fee of Rs. 50 per objection, as required. The fee is refundable if the objection is upheld. Follow the payment instructions provided on the portal.
6. After filling in the details and uploading the necessary documents, submit your objection. Note that objections cannot be edited once submitted.

Railway Isolated Categories Answer Key 2026 Marking Scheme

Candidates must apply the official marking scheme—awarding 1 mark for each correct answer and deducting 1/3rd of a mark for every incorrect response—to accurately compute their tentative exam scores.

• Correct Answer: +1 Mark
• Incorrect Answer: -1/3 of the Mark
• Total Marks: 100

What After RRB Isolated Categories Answer Key?

Following a comprehensive review of all candidate objections against the answer key, the Railway Recruitment Board will publish the final RRB Result along with the zone-wise merit list and cut-off marks. Shortlisted candidates based on these scores will subsequently be invited to the next stage, such as the Stenography Skill Test (SST), Translation Test (TT), Performance Test (PT), or Teaching Skill Test (TST) as applicable.

RRB Isolated Categories Exam – Minimum Qualifying Marks

The mandatory minimum qualifying percentage required to clear the RRB Isolated Categories Exam is detailed here, matching the criteria specified in the official notification PDF.

• UR / General – 40%
• Economically Weaker Section (EWS) – 40%
• OBC (Non-Creamy Layer) – 30%
• Schedule Caste (SC) – 30%
• Schedule Tribe (ST) – 25%

RRB Isolated Categories Syllabus and Exam Pattern – Click to Check

RRB Ministerial and Isolated Category Previous Year Question Papers- Click to Check