The Border Security Force (BSF) has released the provisional answer key for the Head Constable (Radio Operator) and Head Constable (Radio Mechanic) computer-based test held on 2 November 2026. Candidates can see their responses and raise objections from 4 November, 10:00 AM to 6 November 2026, 11:55 PM.
BSF announced this through Notice-3, dated 3 November 2026. The exam is part of the BSF Communication Set-up recruitment for 1,121 posts.
BSF HC RO RM Answer Key 2026: Overview
| Detail | Information |
|---|---|
| Organisation | Border Security Force (BSF) |
| Posts | Head Constable (Radio Operator), Head Constable (Radio Mechanic) |
| Total Posts | 1,121 (RO 910, RM 211) |
| CBT Date | 2 November 2026 |
| Answer Key Status | Provisional |
| Objection Window | 4 to 6 November 2026 |
| Official Website | rectt.bsf.gov.in |
Latest Answer Key Update
The answer key is available through BSF’s online objection portal. After logging in, you can see the question paper with your marked answers and the correct answers BSF has set. The portal stays open till 6 November 2026, 11:55 PM.
Provisional or Final Answer Key Status
This is the provisional answer key. BSF will review the objections it receives and then decide the final answers. The date for the final answer key and CBT result is Not Announced.
Examination Details
| Subject | Questions | Marks |
|---|---|---|
| Physics | 40 | 80 |
| Mathematics | 20 | 40 |
| Chemistry | 20 | 40 |
| English and General Knowledge | 20 | 40 |
| Total | 100 | 200 |
The test lasted 2 hours. Each correct answer carries 2 marks, and each wrong answer costs 0.25 marks. Unanswered questions get zero.
How to Download the Answer Key
- Open the BSF objection portal link given in the Important Links table.
- Log in with the user ID and password you registered with.
- Open the answer key or response sheet section.
- Save the page as a PDF or take screenshots for your record.
How to Check Responses
Go through each question one by one. Compare the option you marked with the correct option shown by BSF. Note the question numbers where you feel BSF’s answer is wrong. You will need these numbers if you raise an objection.
How to Calculate Expected Marks
Use this formula:
Expected Marks = (Correct Answers × 2) − (Wrong Answers × 0.25)
For example, if you got 70 right and 12 wrong, your score is 140 − 3 = 137 marks.
Reports based on the advertisement put the minimum qualifying marks at 38% (76 marks) for UR, OBC and EWS, and 33% (66 marks) for SC and ST. Check these against the official advertisement.
How to Raise Objections
- Log in to the objection portal before 6 November 2026, 11:55 PM.
- Select the question you want to challenge.
- Give your answer and upload supporting proof. BSF requires documentary evidence for every objection.
- Submit and save the confirmation.
BSF accepts objections only through this portal. It will not consider objections sent by email, post or any other mode. Candidates who do not object within the window may not be able to claim re-evaluation later. The objection fee, if any, is Not Announced in the available details, so check the portal.
Common Problems While Checking the Answer Key
- Login not working: Check that you are using the same user ID and password you registered with. Type them instead of pasting.
- Page loading slowly: The portal can get busy near the last date. Try early in the morning or late at night.
- Proof upload failing: Keep your proof file small and clear. Try again before the deadline instead of waiting till the last hour.
What Happens After the Objection Process
BSF will check all objections and release the final answer key and CBT result. Shortlisted candidates move to the next stage:
- Radio Operator: document check, a dictation test of 50 marks, a paragraph reading test that you only need to pass, and a medical exam.
- Radio Mechanic: document check and medical exam. The final merit uses CBT marks only.
For Radio Operator, the final merit adds CBT marks (200) and dictation test marks (50). Dates for the next stage are Not Announced.
Important Links
| Link | Details |
|---|---|
| Answer Key and Objection Portal | Login Here |
| BSF Recruitment Website | rectt.bsf.gov.in |
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- Answer Key
Frequently Asked Questions
When was the BSF HC RO RM CBT held?
The CBT took place on 2 November 2026.
What is the last date to raise objections?
Objections close on 6 November 2026 at 11:55 PM.
Is there negative marking in the BSF HC RO RM exam?
Yes. Each wrong answer costs 0.25 marks.
Can I send my objection by email?
No. BSF accepts objections only through the online portal, with supporting proof.
When will the BSF HC RO RM result come out?
The result date is Not Announced. BSF will release it after reviewing the objections.