The Science Olympiad Foundation (SOF) has announced the Level 1 exam dates for SOF Olympiads 2025-26. These Olympiads cover Science, Mathematics, Computer Education, English, Social Studies, General Knowledge, Commerce, and Hindi subjects. Schools can now plan to hold exams on the scheduled dates for students from classes 1 to 12.
SOF encourages participating schools to register at least 30 days before the exam date. Schools must have minimum ten students to register for any Olympiad. The organisation emphasises preparation strategies, recommended literature, and exam schedules to help students perform their best.
SOF Olympiad Level 1 Exam Schedule 2025-26
The Level 1 exam for various Olympiads will be conducted on three dates. Schools may select a date suitable for their convenience. No changes to the chosen date will be permitted.
Olympiad | Date 1 | Date 2 | Date 3 | Classes |
IGKO (International General Knowledge Olympiad) | Thu, 25 Sep 2025 | Wed, 8 Oct 2025 | Fri, 7 Nov 2025 | 1–10 |
IEO (International English Olympiad) | Fri, 26 Sep 2025 | Tue, 11 Nov 2025 | Wed, 26 Nov 2025 | 1–12 |
NSO (National Science Olympiad) | Thu, 13 Nov 2025 | Thu, 27 Nov 2025 | Thu, 11 Dec 2025 | 1–12 |
IMO (International Mathematics Olympiad) | Wed, 12 Nov 2025 | Fri, 28 Nov 2025 | Fri, 12 Dec 2025 | 1–12 |
ICSO (International Computer Science Olympiad) | Wed, 24 Sep 2025 | Thu, 9 Oct 2025 | Thu, 22 Jan 2026 | 1–10 |
ISSO (International Social Studies Olympiad) | Thu, 18 Sep 2025 | Thu, 20 Nov 2025 | Fri, 23 Jan 2026 | 3–10 |
IHO (International Hindi Olympiad) | Fri, 19 Sep 2025 | Wed, 19 Nov 2025 | Thu, 22 Jan 2026 | 3–10 |
ICO (International Commerce Olympiad) | Thu, 18 Sep 2025 | Fri, 7 Nov 2025 | NA | 11–12 |
About SOF and Its Olympiads
The Science Olympiad Foundation conducts multiple Olympiads to identify and nurture young talent across India and abroad. The foundation organises competitions in a wide range of subjects for students from junior to senior secondary levels.
SOF Olympiads for 2025-26 include:
- International Computer Science Olympiad (ICSO)
- National Science Olympiad (NSO)
- International Mathematics Olympiad (IMO)
- International English Olympiad (IEO)
- International Commerce Olympiad (ICO)
- International General Knowledge Olympiad (IGKO)
- International Social Studies Olympiad (ISSO)
- International Hindi Olympiad (IHO)
Registered schools can choose exam dates based on convenience and prepare students accordingly for competitive assessment at national and international levels.

