OSSC Combined Higher Secondary Level Examination (CHSL - Soil Conservation Worker, Amin) 2026: Official Notification, Pattern, Syllabus & Mock Tests
State intermediate level recruitment examination conducted by OSSC for appointing Soil Conservation Extension Workers, Amins, and technical field assistants across state departments in Odisha.
Examination Overview
State intermediate level recruitment examination conducted by OSSC for appointing Soil Conservation Extension Workers, Amins, and technical field assistants across state departments in Odisha.
| Exam Name | OSSC Combined Higher Secondary Level Examination (CHSL - Soil Conservation Worker, Amin) |
|---|---|
| Conducting Authority | Odisha Staff Selection Commission (OSSC) |
| Exam Level | State |
| Frequency | Annual / Biennial |
| Mode of Examination | Computer Based Test (CBT) / Written Examination |
| Language of Exam | English, Hindi & State Regional Languages |
| Official Website | https://www.ossc.gov.in ↗ |
Important Dates & Events
Timeline confirmed from official notices issued by Odisha Staff Selection Commission (OSSC).
| Event / Milestone | Important Date / Status |
|---|---|
| Official CHSL Notification | Published on ossc.gov.in |
| Preliminary Examination | Conducted state-wide in computer-based mode |
| Main Examination | Held in Bhubaneswar and major centers |
| Certificate Verification | OSSC Office, Bhubaneswar |
Exam Pattern & Marking Scheme
Two-stage selection: 1. Preliminary Examination (Objective CBRE/OMR: 150 Questions, 150 Marks, 2.5 Hours; 0.25 negative marking; screening). 2. Main Written Examination (200 Questions, 200 Marks, 3 Hours: Part A Technical/Science Subjects & Part B General Studies; 0.25 negative marking). Followed by Certificate Verification.
| Examination Parameter | Scheme Details | Remarks / Evaluation |
|---|---|---|
| Question Format | Multiple Choice Questions (Objective MCQs) | 4 or 5 options per question |
| Evaluation Mode | Computer Based Test (CBT) / Offline OMR Sheet | Centralized Evaluation System |
| Negative Marking Scheme | Standard 1/3rd or 1/4th negative deduction | Penalized for incorrect responses |
| Language Medium | Bilingual (English & Hindi) + Regional State Languages | Language toggle available in CBT |
| Normalization | Equipercentile or Percentile method across shifts | Multi-shift normalization applied |
Selection Process & Stages
Candidate progression through sequential recruitment tiers:
Preliminary / Tier 1 Examination
Comprehensive objective screening test covering core aptitude, reasoning, general knowledge and language skills.
Mains / Tier 2 / Skill Test
Advanced written assessment or post-specific technical/descriptive examination determining the final merit order.
Document Verification & Medical
Scrutiny of original certificates, category credentials, age proofs and required medical fitness examination.
Eligibility Criteria (Age & Educational Qualification)
+2 Science / Vocational or +2 in any discipline from Council of Higher Secondary Education (CHSE) Odisha or recognized Board. Ability to read, write, and speak Odia. Age: 21 to 38 years (Relaxations for reserved categories).
| Parameter | Eligibility Condition | Relaxation Norms |
|---|---|---|
| Educational Criteria | +2 Science / Vocational or +2 in any discipline from Council of Higher Secondary Education (CHSE) Odisha or recognized Board. Ability to read, write, and speak Odia. Age: 21 to 38 years (Relaxations for reserved categories). | Recognized Board / University required |
| Age Requirement | As specified in official notification (General Category) | SC/ST: +5 Years | OBC: +3 Years | PwD: +10 Years |
| Citizenship | Citizen of India | Subject of Nepal/Bhutan as per Central/State rules |
| Language Proficiency | Regional / English & Hindi working knowledge | Applicable as per State / National jurisdiction |
Detailed Syllabus by Subject
Prelims: Arithmetic (Class 10 standard), Data Interpretation, Logical Reasoning, Current Events, Computer Fundamentals. Mains (Soil Conservation): Physics, Chemistry, Mathematics, Biology / Agriculture science subjects (Senior Secondary Standard), and Soil & Water Conservation Principles.
📖 General Studies & Current Affairs
- Current National & International Events
- Indian History & Freedom Struggle
- Indian & World Geography
- General Science (Physics, Chemistry, Biology)
- Indian Polity, Constitution & Governance
- Basic Economic Concepts & Budget Highlights
🔢 Quantitative & Numerical Aptitude
- Simplification, Number System, HCF & LCM
- Percentage, Ratio & Proportion, Profit & Loss
- Simple & Compound Interest
- Time, Speed & Distance, Time & Work
- Data Interpretation (Tables, Bar & Pie Charts)
🧩 Reasoning & Mental Ability
- Analogies, Classification & Series Completion
- Coding-Decoding & Blood Relations
- Direction Sense Test & Ranking Order
- Syllogisms, Statements & Assumptions
- Non-Verbal Reasoning & Figure Counting
📝 Language Comprehension
- Reading Comprehension Passages
- Vocabulary, Synonyms & Antonyms
- Grammar, Error Spotting & Sentence Correction
- Cloze Test, Idioms & Phrases
- One Word Substitutions & Spelling Check
Preparation Strategy & Cut-Off Trends
Historical scoring benchmarks and safe score targets for OSSC Combined Higher Secondary Level Examination (CHSL - Soil Conservation Worker, Amin) based on competitive trends:
| Category | Safe Target Percentage | Preparation Focus | Benchmark Accuracy |
|---|---|---|---|
| General (UR) | 75% - 82% | Speed + Negative Control in Reasoning & Quant | 90%+ Accuracy |
| OBC / EWS | 70% - 76% | High Scoring in Current Affairs & Language | 88%+ Accuracy |
| SC / ST | 62% - 70% | Syllabus Coverage & Previous Year Papers | 85%+ Accuracy |
| PwD / Ex-SM | 55% - 65% | Sectional Cut-Off clearance + Accuracy | 82%+ Accuracy |
Official Mock Test Series & CBT Practice
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