OPSC OCS / OAS
Complete Exam Guide
Updated 27 Oct 2026
OPSC OCS Exam: Complete Guide to the Odisha Civil Services Examination
OCS 2025 Mains: OPSC has rescheduled two papers because of Cyclone ARNAB. The exam now runs 31 October – 7 November 2026 (Notice No. 5984/PSC, 26 Oct 2026).
STAGES
Prelims · Mains · Interview
FINAL MERIT
2,000 marks (1,750 + 250)
OCS 2025 POSTS
465 in 11 services
✅ Quick Answer
🗓️ OCS 2025 Status
🧭 Exam Pattern
🏛️ Services and Salary
🎓 Eligibility
📉 Cut-offs
🧠 Preparation
❓ FAQ
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Quick Answer
The Odisha Civil Services (OCS) Examination is conducted by the Odisha Public Service Commission (OPSC) to recruit officers for the Odisha Administrative Service (OAS), Odisha Police Service and other state Group A and Group B services. It has three stages: a Prelims of two objective papers (screening only), a Mains of seven merit papers worth 1,750 marks plus two qualifying language papers, and a 250-mark interview, for a final merit total of 2,000. Any graduate who can read, write and speak Odia can apply; the 2025 cycle allowed ages 21–42. The current cycle, OCS 2025 (Advt. No. 05 of 2025-26), has 465 posts and its Mains runs from 31 October to 7 November 2026.
Last updated: 27 October 2026 · Official source: opsc.gov.in. OPSC dates and rules can change through corrigenda; always confirm on the official website.
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OCS Guides on Strive Edge IAS
Expected date, vacancies, eligibility, age limit and fee
Prelims, Mains GS I–IV, optional list and Odisha topics
Paper-wise schedule, admit card and exam-day tips
Expected date, interview and final result
Subject-wise and year-wise, with an Odisha section
GS and optional papers: sociology, geography, anthropology
Stage-wise preparation plan
Daily Odisha news for Prelims, Mains and interview
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OCS 2025 (Advt. No. 05 of 2025-26): Where Things Stand
| Stage | Date | Status |
|---|---|---|
| Notification | 31 December 2025 | 314 posts, raised to 465 by addendum |
| Prelims | 7 June 2026 | Held |
| Prelims result | 10 July 2026 | 5,690 qualified (1,905 women) |
| Mains (written) | 31 Oct – 7 Nov 2026 (revised) | Starts this week |
| Mains result | Not announced | Awaited |
| Interview and final result | Not announced | Awaited |
Revised Mains timetable (Notice No. 5984/PSC, 26 October 2026)
| Date | Forenoon (9 am – 12 noon) | Afternoon (2 – 5 pm) |
|---|---|---|
| Sat, 31 Oct 2026 | Odia Language | English Language |
| Mon, 2 Nov 2026 | General Studies I | General Studies II |
| Wed, 4 Nov 2026 | General Studies III | General Studies IV |
| Thu, 5 Nov 2026 | Essay | — |
| Sat, 7 Nov 2026 | Optional Paper I | Optional Paper II |
What changed: Because of the impending Cyclone ARNAB, OPSC moved the language papers from 29 October to 31 October and the Essay from 30 October to 5 November. The 2, 4 and 7 November papers are unchanged. The revised programme replaces the schedule attached to the admission certificate. PwD candidates get one extra hour per sitting.
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OCS Exam Pattern at a Glance
| Stage | Papers | Marks | Counts for merit? |
|---|---|---|---|
| Prelims (objective) | GS Paper I; GS Paper II (CSAT, qualifying at 33%) | 200 + 200 | No, screening only |
| Mains – qualifying | Odia Language; English Language (Matriculation standard) | 250 each | No, qualifying only |
| Mains – merit | Essay; GS I–IV; Optional Papers I and II | 7 × 250 = 1,750 | Yes |
| Interview | Personality Test | 250 | Yes |
| Final merit | 2,000 |
- Negative marking: one-third of the marks for a question are deducted for each wrong answer in the Prelims.
- Odisha focus: every GS paper includes Odisha history, culture, geography, economy and governance. See the full OCS syllabus for the topic list.
- Optional subjects: the OCS 2025 Mains offers 34 options: 30 subjects (from Agriculture to Zoology) and the literature of English, Hindi, Odia or Urdu.
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Services, Posts and Salary
| Service (OCS 2025) | Posts |
|---|---|
| Odisha Taxation & Accounts Service | 176 |
| Odisha Revenue Service | 113 |
| Odisha Labour Service | 98 |
| Odisha Welfare Service | 16 |
| Odisha Administrative Service (OAS) | 14 |
| Odisha Police Service (OPS) | 12 |
| Odisha Skill Development & Employment Service | 10 |
| Odisha Tourism Service | 8 |
| Odisha Transport Service | 8 |
| Odisha Excise Service | 6 |
| Odisha Co-operative Service | 4 |
| Total | 465 |
Group A posts
Level 12 of the pay matrix under the Odisha Revised Scales of Pay Rules, 2017: basic pay Rs 56,100 (scale Rs 56,100–1,77,500), plus DA, HRA and other allowances.
Group B posts
Level 10 of the same pay matrix: basic pay Rs 44,900, plus allowances. The advertisement lists the group of each service.
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Eligibility in Brief
| Criterion | Rule in the OCS 2025 cycle |
|---|---|
| Education | Bachelor’s degree from a recognised university, or an equivalent qualification |
| Age | 21–42 years on 1 January 2025; +5 years for SC, ST, SEBC, women and ex-servicemen; +10 years for PwD |
| Odia | Must read, write and speak Odia, with documentary proof (for example, Odia as a subject up to Class VII or in the Middle School Examination) |
Check each new notification: the upper age limit was 38 in the 2024 cycle and 42 in the 2025 cycle. Attempts, fee and the age cut-off date are set afresh each year. Details: OCS Notification 2026.
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How OCS Cut-offs Work
- Prelims: the Mains shortlist depends on GS Paper I marks, provided the candidate scores at least 33% in CSAT. The cut-off is fixed separately for each category and for women.
- Mains: candidates must clear the Odia and English papers. Merit is then decided by the seven papers (1,750 marks), and about twice as many candidates as there are vacancies are called for the interview.
- Final: the merit list ranks candidates on Mains plus interview (2,000 marks). Prelims marks are not added.
- Where to find official figures: OPSC does not release cut-off marks with the Prelims result. Category-wise marks are usually published later, around the final result. Many websites carry cut-off tables that do not cite a source, so use only figures taken from OPSC notices.
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Preparation Roadmap
1. Build the UPSC-common base
NCERTs and standard books for polity, history, geography and economy cover most of GS. The OCS pattern closely follows UPSC CSE.
2. Add the Odisha layer
Odisha history (Kalinga to the Praja Mandal movements), temple architecture, geography, the state budget and the Economic Survey, and state schemes.
3. Practise with PYQs
Solve OPSC Prelims PYQs subject-wise, then write answers to Mains PYQs.
4. Do not neglect the qualifying papers
The Odia and English papers are only Matriculation standard, but failing either one means the merit papers are not evaluated.
5. Choose the optional early
Sociology, geography, anthropology, history and public administration are common choices. Check the optional syllabus and past papers before you decide.
6. Track Odisha current affairs
Follow daily Odisha current affairs; they feed into Prelims, GS papers and the interview.
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Frequently Asked Questions
Is OAS the same as OCS?
The Odisha Civil Services Examination is a single exam. The Odisha Administrative Service (OAS) is one of the services filled through it, along with the Odisha Police Service, Odisha Revenue Service, Odisha Taxation & Accounts Service and others.
When is the OCS 2025 Mains exam?
From 31 October to 7 November 2026, as per OPSC’s revised programme of 26 October 2026: language papers on 31 October, GS I–II on 2 November, GS III–IV on 4 November, Essay on 5 November and optional papers on 7 November.
How many vacancies are there in OCS 2025?
465 posts in 11 services. The advertisement originally had 314 posts, and an addendum raised the number to 465.
What is the age limit for the OPSC OCS exam?
In the 2025 cycle the limit was 21–42 years on 1 January 2025, with 5 years’ relaxation for SC, ST, SEBC, women and ex-servicemen and 10 years for PwD candidates. Check each new notification, because the limit has changed between cycles.
Are Prelims marks counted in the final merit?
No. The Prelims only screens candidates for the Mains. The final merit is based on 2,000 marks: 1,750 from the Mains merit papers and 250 from the interview.
Is knowledge of Odia compulsory?
Yes. Candidates must be able to read, write and speak Odia, show documentary proof, and clear the qualifying Odia Language paper in the Mains.
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Related Resources on Strive Edge IAS
- UPSC preparation: UPSC Syllabus and UPSC Exam Pattern (most GS preparation applies to both exams)
- Classroom and online coaching: OPSC OAS coaching at Strive Edge IAS, Bhubaneswar
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Source: Odisha Public Service Commission (opsc.gov.in): OCS 2025 advertisement (Advt. No. 05 of 2025-26) and its addenda, and Notice No. 5984/PSC dated 26.10.2026. Pay levels as per the Odisha Revised Scales of Pay Rules, 2017. Compiled by the Strive Edge IAS editorial team, Bhubaneswar.
