IB ACIO Answer Key Released at mah.gov.in, Download and check here.

The Ministry of Home Affairs (MHA) has released the official IB ACIO Grade 2/Executive Answer Key 2025 just four days after the last exam on 22nd September 2025. The answer key PDFs and response sheets are now available on the official website, and candidates can download them by logging in with their User ID and Password. The IB ACIO Answer Key 2025 can be accessed either through the official website https://www.mha.gov.in/ or directly from the official login link provided in the article.
IB ACIO Gr-2/ Executive Answer Key 2025 Out
This year, over 4 lakh candidates appeared for the Tier 1 exam conducted for 3,717 Assistant Central Intelligence Officer Grade 2/Executive vacancies. With the release of the official IB ACIO Tier 1 Answer Key on 22nd September 2025, candidates can now check the number of correct and incorrect responses they have marked. The facility to challenge the answer key has also been activated, and the last date to raise objections is 25th September 2025.
Also Check : WBSSC Group C and D Recruitment 2025
How to Download IB ACIO Answer Key 2025 from mha.gov.in?
Candidates can download their official IB ACIO Answer Key 2025 by following these steps:
- Visit the official website of the Ministry of Home Affairs: www.mha.gov.in.
- On the homepage, click on “IB ACIO Grade-2/Executive Answer Key”.
- A login page will open where you need to enter your User ID, Password, and captcha code.
- Click on “Login”, and the official IB ACIO Answer Key 2025 for the Tier 1 Grade-2/Executive exam will appear on the screen.
- Download and print the answer key to cross-check your responses.
Official Link IB ACIO 2025 Tier 1 Answer Key
Candidates can download the provisional IB ACIO Grade 2/Executive Answer Key 2025 from the direct link shared below and use it to calculate their probable scores as per the correct marking scheme. The same link can also be used by candidates to raise objections against the provisional answer key.
How to Calculate Marks Using IB ACIO Answer Key?
The IB ACIO Tier 1 Exam consists of 100 objective-type questions (MCQs), and the marking scheme was already shared in the official notification. As per the scheme, candidates will be awarded 1 mark for each correct answer, while 0.25 mark will be deducted for every incorrect response as negative marking.
Total Marks = (Correct Answers x 1) – (Wrong Answers x 0.25)
Example to calculate IB ACIO Tier 1 Answer Key:
- Correct Answers: 75
- Wrong Answers: 25
- Marks = (75 x 1) – (25 x 0.25) = 70 – 6.25= 63.75 marks
What’s Next After IB ACIO Answer Key 2025?
After the release of the provisional answer key, the following stages will take place:
- Objection Window: Candidates can raise objections against the provisional answer key.
- Final Answer Key: The IB ACIO Final Answer Key 2025 will be published with all correct responses after reviewing the objections.
- Result: The IB ACIO Result 2025 will be declared, listing the candidates shortlisted for Tier 2.
- Tier 2 Exam: A descriptive paper including Essay and Comprehension will be conducted.
- Interview Round: Candidates qualifying Tier 2 will be called for the interview round.
- Final Merit List: Prepared on the basis of marks obtained in Tier 1, Tier 2, and the Interview.