OPSC OAS 2025 – Notification, Vacancy, Syllabus, Eligibility & Exam Pattern

Odisha Civil Services Examination (OAS) 2025 conducted by OPSC selects officers for OAS, OPS, OCS, OTAS & other Group-A/B services. This is the complete guide for Prelims, Mains, Interview, Eligibility, Attempt Limit, Optional Subjects, Pattern & Cutoff Trends.

Exam Conducting Body

Odisha Public Service Commission (OPSC)

Posts Included

OAS, OPS, OCS, OTAS, ORS & other Group-A/B posts

Stages

Prelims → Mains → Personality Test (Interview)

OPSC OAS 2025 Notification – Key Highlights

Important Dates (Expected)

Notification Release: January 2025
Online Registration: Jan–Feb 2025
Prelims Exam: June–July 2025
Mains Exam: November 2025
Interview/Personality Test: Early 2026

The OPSC conducts OAS annually to recruit top-level administrative officers for the Government of Odisha.

OPSC OAS 2025 Vacancy – Expected Breakdown

The final vacancy will be released in the notification. Expected range based on previous cycles: 150–300 posts.

Major Services in OPSC OAS

OAS – Odisha Administrative Service
OPS – Odisha Police Service
OCS – Odisha Co-operative Service
OTAS – Odisha Taxation & Accounts Service
ORS – Odisha Revenue Service
OFS – Odisha Finance Service

Eligibility – Age, Education & Attempts

Educational Qualification

Bachelor’s Degree in any discipline from a recognized university.

Age Limit (Expected)

Minimum: 21 years
Maximum: 32 years

SC/ST/SEBC/Women/PwD categories get applicable upper age relaxations.

Attempt Limit

UR – 6 attempts
SEBC – 9 attempts
SC/ST – Unlimited attempts (till upper age limit)

OPSC OAS Exam Pattern 2025

Stage 1: Prelims (Objective)

Paper 1 – General Studies I (200 marks)
Paper 2 – General Studies II (CSAT – qualifying)
Negative marking: Yes

Stage 2: Mains (Descriptive)

9 Papers (5 compulsory + 4 optional papers)

Odia Language
English
Essay
General Studies I, II, III, IV
Optional Subject Paper I & II

Stage 3: Personality Test

Interview – 250 Marks (final ranking crucial)

OAS Syllabus 2025 – Prelims & Mains

Prelims Paper 1 – GS

History of India & Odisha
Geography of India & Odisha
Indian Polity & Odisha Governance
Economics, Budget, Planning
Science & Technology
Current Affairs – National & State

Prelims Paper 2 – CSAT

Reading comprehension
Logical reasoning & analytical ability
Decision making
Basic numeracy

Mains – Essay & GS

Odisha-specific governance, socio-cultural issues, tribal affairs & disaster management are important.

Optional Subjects

Public Administration, Geography, Sociology, Anthropology, Political Science, History & more (full list in notification).

Aspirant Gallery

UPSC/OAS study session.

Note making & analysis.

Library study environment.

Focused revision.

Preparation Strategy for OPSC OAS 2025

OAS requires consistent 8–12 month preparation:

Focus on GS fundamentals (NCERTs + Odisha-specific topics)
Daily current affairs (Odisha + national)
Essay practice weekly
CSAT practice for accuracy
Optional subject depth-oriented preparation

Frequently Asked Questions – OPSC OAS 2025

What is the eligibility for OPSC OAS?

A bachelor’s degree in any discipline; age 21–32; attempt limits apply.

Is CSAT qualifying?

Yes. Minimum 33% required.

Are Odia language skills required?

Yes, Odia language knowledge is mandatory for final selection.