The Odisha Public Service Commission (OPSC) has released the OPSC OCS Main Subject Code List 2026 for the OCS Main (Written) Examination-2025 under Advertisement No. 05 of 2025-26. The notice, dated 13 October 2026, lists 75 subject codes covering compulsory papers, optional subjects and Indian Language & Literature papers. Candidates appearing for the examination scheduled from 29 October to 7 November 2026 must mention the correct subject code in their Question-cum-Answer Booklets. Candidates can check the complete subject-wise code list and official notice below.
Direct Link to Check OPSC OCS Main Exam Date 2026
Quick Overview - OPSC OCS Main Exam Date 2026
| Detail | Information |
|---|---|
| Organization | Odisha Public Service Commission (OPSC) |
| Examination | OCS Main (Written) Examination-2025 |
| Advertisement | Advt. No. 05 of 2025-26 |
| Notice No. | 5800/PSC |
| Notice Date | 13.10.2026 |
| Exam Schedule | 29.10.2026 to 07.11.2026 |
| Purpose of Notice | To tell candidates which Subject Code to mention in the Question-cum-Answer Booklet |
| Total Codes Listed | 75 (01 to 75) |
| Official Website | www.opsc.gov.in |
OCS Main Exam 2026 Important Dates
| Event | Date |
|---|---|
| Subject code notice issued | 13.10.2026 |
| OCS Main (Written) Examination begins | 29.10.2026 |
| OCS Main (Written) Examination ends | 07.11.2026 |
What Is the Subject Code in OCS Main?
A subject code is a two-digit number assigned to each paper. According to the notice, candidates appearing in the OCS Main (Written) Examination-2025 are advised to write the code of the paper they are attempting in their Question-cum-Answer Booklet.
OCS Main Compulsory Papers Subject Codes
| Sl. No. | Compulsory Paper | Subject Code |
|---|---|---|
| 1 | Odia Language | 01 |
| 2 | English Language | 02 |
| 3 | Essay | 03 |
| 4 | General Studies, Paper-I | 04 |
| 5 | General Studies, Paper-II | 05 |
| 6 | General Studies, Paper-III | 06 |
| 7 | General Studies, Paper-IV | 07 |
OCS Main Optional Subject Code List
The table below groups each optional subject with its Paper-I and Paper-II codes, exactly as numbered in the OPSC notice.
| Optional Subject | Paper-I Code | Paper-II Code |
|---|---|---|
| Agriculture | 08 | 09 |
| Agriculture Engineering | 10 | 11 |
| Animal Husbandry & Veterinary Science | 12 | 13 |
| Anthropology | 14 | 15 |
| Botany | 16 | 17 |
| Chemistry | 18 | 19 |
| Civil Engineering | 20 | 21 |
| Commerce & Accountancy | 22 | 23 |
| Economics | 24 | 25 |
| Education | 26 | 27 |
| Electrical Engineering | 28 | 29 |
| Fishery Science | 30 | 31 |
| Forestry | 32 | 33 |
| Geography | 34 | 35 |
| Geology | 36 | 37 |
| History | 38 | 39 |
| Home Science | 40 | 41 |
| Law | 42 | 43 |
| Management | 44 | 45 |
| Mathematics | 46 | 47 |
| Mechanical Engineering | 48 | 49 |
| Medical Science | 50 | 51 |
| Philosophy | 52 | 53 |
| Physics | 54 | 55 |
| Political Science & International Relations | 56 | 57 |
| Psychology | 58 | 59 |
| Public Administration | 60 | 61 |
| Sociology | 62 | 63 |
| Statistics | 64 | 65 |
| Zoology | 66 | 67 |
Indian Language & Literature Papers Subject Codes
| Language | Paper-I Code | Paper-II Code |
|---|---|---|
| English | 68 | 69 |
| Hindi | 70 | 71 |
| Odia | 72 | 73 |
| Urdu | 74 | 75 |
Also Read: RRB NTPC Graduate Exam Date 2026
Compulsory Odia vs Optional Odia: Do Not Mix the Codes
Odia appears twice in the list. Odia Language is a compulsory paper with code 01. Odia, Paper-I and Paper-II under Indian Language & Literature carry codes 72 and 73. The same applies to English: English Language is 02, while English Paper-I and Paper-II (literature) are 68 and 69.
How to Mention the Subject Code in the Answer Booklet
- Check the name of the paper printed on your question paper.
- Find the matching code in the tables above or in the official notice.
- Write that code in your Question-cum-Answer Booklet as advised in the notice.
- For optional subjects, use the Paper-I or Paper-II code that matches the paper you are writing that day.
Important Instructions for OCS Main 2025 Candidates
- Write the correct subject code for every paper. Paper-I and Paper-II of the same subject have different codes.
- Do not confuse compulsory language papers (01, 02) with the Indian Language & Literature papers (68 to 73).
- Visit the OPSC website regularly for further information, as the notice advises.
- Keep a copy of the official notice for reference before the exam.
What the Notice Does Not Mention
This notice only covers subject codes. The following details are not available in it:
- Paper-wise exam dates and timings
- Admit card release date and download process
- Syllabus, marking scheme and marks per paper
- Exam centres
- Number of vacancies and post details
- Exact location in the booklet where the code must be written
For these, check the official website and the full Advt. No. 05 of 2025-26.
OPSC OCS Main Exam Date 2026 - Important Links
| Resource | Link |
|---|---|
| OPSC Official Website | Visit OPSC Website |
| Check Exam Schedule | Check Here |
