The West Bengal Public Service Commission (WBPSC) has issued the detailed recruitment advertisement for 247 Industrial Development Officer (IDO) posts under Advertisement No. 15/2024. The reported written-exam scheme has 100 objective questions for 100 marks, divided across seven subjects. Candidates who qualify in the written examination will be called for an interview carrying 15 marks.
One point matters before you start preparing: older websites still describe a 75-mark General Studies section and a 25-mark Mental Ability and Arithmetic section. The newer seven-subject distribution is the pattern reported in summaries of the detailed 2026 advertisement. Candidates should use the Commission’s advertisement—not an older preparation page—as the final reference.
WBPSC IDO Syllabus 2026: Key Details
| Particular | Details |
|---|---|
| Recruiting authority | West Bengal Public Service Commission |
| Post | Industrial Development Officer |
| Advertisement number | 15/2024 |
| Vacancies | 247 |
| Department | Micro, Small & Medium Enterprises and Textiles Department |
| Written examination | Objective-type |
| Subjects | 7 |
| Written examination marks | 100 |
| Reported questions | 100 |
| Reported duration | 90 minutes |
| Interview | 15 marks |
| Total selection marks | 115 |
| Application dates | 6–26 November 2026 |
| Application closing time | 3:00 PM on 26 November 2026 |
| Edit window | 27 November–2 December 2026 |
WBPSC IDO Exam Pattern 2026: Seven Subjects
The reported subject-wise distribution is:
| Subject | Marks |
|---|---|
| Mental Ability and Arithmetic | 20 |
| English | 15 |
| Physical Science | 15 |
| Environmental Issue with Emphasis on Energy Conservation and Renewable Energy | 15 |
| Industrial Scenario and Industrial Potential in West Bengal | 15 |
| Industrial Safety/Security Measures and Pollution Control Measures | 10 |
| Elementary Computer Knowledge | 10 |
| Total | 100 |
The written examination is reported to contain 100 multiple-choice questions, with one mark for each correct answer, and a duration of 90 minutes. That gives candidates an average of 54 seconds per question.
The interview carries another 15 marks. If the written examination and interview are both considered for the final merit total, the combined maximum is 115 marks.
Is there negative marking?
Recent summaries of the detailed advertisement report a deduction of 0.25 marks for each incorrect answer. This is more consistent than the older online descriptions that mention no negative marking. Nevertheless, candidates should check the instructions in the original advertisement before deciding how to attempt uncertain questions.
If the paper has four options and a 0.25-mark penalty, a completely random guess has an expected value of +0.0625 marks. This calculation depends on there being exactly four options and the stated penalty applying to every wrong answer. Do not use it as an exam rule unless those details are confirmed.
Is the examination online or offline?
Do not assume the examination mode from an older syllabus page. Check the Commission’s examination instructions for the current recruitment. The subject-wise marks distribution and the mode of examination are separate details.
Why Older WBPSC IDO Syllabus Pages Can Mislead You
Some older preparation pages describe the paper as:
- General Studies: 75 marks
- Mental Ability and Arithmetic: 25 marks
That is different from the seven-subject distribution reported for the detailed 2026 advertisement. Some websites also display both versions on the same page, which can leave candidates unsure about which subjects to prepare.
For this recruitment, use the seven-subject table above as the reported current pattern. Do not automatically add a broad list of history, geography, polity or other humanities chapters simply because an older page includes them under General Studies.
The advertisement is the controlling document. If a coaching or job portal gives a different distribution, compare it with the detailed notification before following its advice.
Subject-Wise Preparation Guidance
The seven subject headings and their marks provide a useful preparation framework. However, a subject heading is not the same as a detailed chapter-wise syllabus. The following are suggested areas for preparation, not a claim that every topic is expressly listed in the Commission’s notification.
1. Mental Ability and Arithmetic — 20 Marks
This is the highest-weighted section, carrying one-fifth of the written examination.
For preparation, candidates can practise:
- Number and letter series
- Analogy and classification
- Direction and relationship questions
- Logical reasoning and interpretation of information
- Percentages, ratios and proportions
- Profit and loss, discount and interest
- Time and work, speed and distance
- Number system, simplification and basic mensuration
- Tables, graphs and data interpretation
Use these as a practice checklist, not as an officially confirmed chapter list. Give regular attention to timed problem-solving because the reported paper duration allows less than a minute per question on average.
2. English — 15 Marks
The notification summaries identify English as a separate 15-mark subject. Until a detailed topic list is confirmed, candidates can strengthen their general English skills through grammar, vocabulary, sentence correction, comprehension and usage exercises.
3. Physical Science — 15 Marks
Physical Science carries 15 marks. Revise foundational school-level concepts and practise objective questions. Avoid assuming that a particular chapter list or difficulty level is prescribed unless it appears in the official advertisement or a later Commission notice.
4. Environmental Issues, Energy Conservation and Renewable Energy — 15 Marks
This section specifically highlights environmental issues, energy conservation and renewable energy.
Useful preparation areas include:
- Basic environmental concepts and pollution
- Energy efficiency and conservation
- Renewable and non-renewable energy sources
- Solar, wind, hydro and other renewable technologies
- Environmental protection and sustainable development
These are suggested study areas based on the subject heading, not a verbatim official chapter list.
5. Industrial Scenario and Industrial Potential in West Bengal — 15 Marks
This is particularly relevant to the Industrial Development Officer role.
Candidates may find it useful to study:
- West Bengal’s industrial profile
- Major industrial sectors and industrial clusters
- MSMEs and their role in employment and economic development
- Industrial infrastructure and investment-related developments
- State and central initiatives supporting small businesses
- Industrial opportunities and challenges in West Bengal
For schemes and current industrial developments, use recent government information rather than relying only on old coaching notes. Treat these as preparation suggestions unless the advertisement provides a more detailed list.
6. Industrial Safety/Security Measures and Pollution Control Measures — 10 Marks
This section combines industrial safety, security measures and pollution control. Candidates should build a basic understanding of workplace safety, industrial hazards, accident prevention, protective measures and pollution-control concepts.
The exact depth and chapter coverage should be checked against the official syllabus, if separately specified.
7. Elementary Computer Knowledge — 10 Marks
Elementary Computer Knowledge carries 10 marks. Candidates can revise basic computer terminology, hardware and software, operating systems, common applications, internet use and elementary digital concepts as general preparation.
Again, these are suggested revision areas, not a confirmed official topic-by-topic list.
How the Marks Distribution Should Shape Your Preparation
The marks table suggests that candidates should not prepare only from a conventional General Studies book.
| Preparation group | Subjects included | Combined marks |
|---|---|---|
| Industry and environment | Industrial Scenario; Environmental Issues; Industrial Safety | 40 |
| Reasoning and quantitative practice | Mental Ability and Arithmetic | 20 |
| Language and computer basics | English; Elementary Computer Knowledge | 25 |
| Science | Physical Science | 15 |
| Total | 100 |
The industry and environment-related subjects together account for 40 marks. That makes them important parts of the preparation plan, alongside the 20-mark Mental Ability and Arithmetic section.
A balanced plan would include daily reasoning and arithmetic practice, regular revision of Physical Science and English, and dedicated time for West Bengal’s industrial profile, MSMEs, environmental issues and industrial safety.
Interview: 15 Marks and Bengali Language Ability
The reported selection process includes an interview carrying 15 marks. Candidates should also pay attention to the Bengali language requirement.
The recruitment information describes the ability to read, write and speak Bengali as an essential requirement, with an exemption for candidates whose mother tongue is Nepali. Check the precise wording and applicable conditions in the official advertisement.
The interview is not simply an extension of the written syllabus. Candidates should be ready to explain their educational background, interest in industrial development, awareness of MSMEs and understanding of relevant developments in West Bengal.
Previous Papers and Expected Cut-Off
A previous IDO paper may help candidates understand question style and practise under time limits. However, papers based on an older pattern should not be treated as a reliable guide to the current seven-subject distribution.
No dependable cut-off for the revised pattern has been established in the sources consulted for this article. Any expected cut-off published before the examination and official result should be treated as an estimate, not a WBPSC figure.
Suggested Study Plan
This is a preparation recommendation, not a schedule issued by WBPSC.
- Start with the 40 marks covering industrial scenario, environmental issues and industrial safety.
- Practise Mental Ability and Arithmetic every day to improve speed and accuracy.
- Revise English and Physical Science consistently rather than leaving them until the end.
- Cover elementary computer concepts through short revision sessions.
- Take timed practice tests based on the reported 100-question, 90-minute format.
- Follow the official advertisement for the final rules on negative marking and examination mode.
Frequently Asked Questions
Is the WBPSC IDO examination based on a 75-mark General Studies and 25-mark Mental Ability pattern?
Older websites describe that distribution. The newer pattern reported for the detailed 2026 advertisement has seven separate subjects carrying 20, 15, 15, 15, 15, 10 and 10 marks.
How many subjects are there in the WBPSC IDO written examination?
The reported 2026 pattern has seven subjects.
How many marks is the written examination worth?
The written examination is reported to carry 100 marks, with 100 objective questions.
How long is the written examination?
Recent recruitment summaries report a duration of 90 minutes.
Is there negative marking?
Recent summaries of the detailed advertisement report a deduction of 0.25 marks for each incorrect answer. Candidates should verify this in the original advertisement’s examination instructions.
How many marks are allotted to the interview?
The interview carries 15 marks, making the reported combined total 115 marks.
Has the WBPSC IDO examination date been announced?
The sources consulted for this article do not provide a confirmed examination date. Check the Commission’s website for an official schedule or subsequent notice.
When does the application window close?
Online applications and fee payment are reported to close on 26 November 2026 at 3:00 PM. The reported edit window is from 27 November to 2 December 2026.
WBPSC IDO Syllabus 2026 Important Links
Official Website and Notification
Candidates should use the West Bengal Public Service Commission’s website for the detailed advertisement, examination instructions, corrigenda and future updates.
Official WBPSC website: https://psc.wb.gov.in
Important: This article summarises the reported seven-subject pattern and offers independent preparation guidance. The official advertisement and any later corrigendum take precedence. Suggested practice topics in this article should not be mistaken for a verbatim chapter-wise syllabus issued by WBPSC.