| Olympiad | Conducting Body | Registration Mode | Last Date | Exam Date(s) |
|---|---|---|---|---|
| Indian Talent Olympiad (ITO) | Indian Talent Organization | Individual & School | 25 Oct 2025 (Individual), 15 Sept 2025 (School) | 1–13 Dec 2025 & 5–13 Jan 2026 (Online), 17–22 Nov 2025 (Offline) |
| Science Olympiad Foundation (SOF) | SOF | School Only | Sep–Oct 2025 (via schools) | Sep–Dec 2025 (IEO, NSO, IMO, ICSO etc.) |
| Unified Council Olympiads | Unified Council | Individual & School | Till 1 week before each exam | UICO: 28 Dec 2025, UIEO: 4 Jan 2026, UIMO: 11 Jan 2026, NSTSE: 25 Jan 2026 |
| ISTSE | Indian School Talent Search Exam | Individual & School | 15 Nov 2025 | 16–23 Nov 2025 (Online) |
| School Connect Online Olympiads | SCO | Individual & School | Rolling registration | Monthly rounds: Apr, May, Jun, Oct, Nov 2025 |
| HBCSE (NSEs) | Homi Bhabha Centre for Science Education | School Only | Expected Oct 2025 | NSEP, NSEB, NSEC, NSEA, NSEJS – Nov 2025 |
| National Space Olympiad | CUSAT | Individual | Announced soon | Nov–Dec 2025 (tentative) |
| Technothlon (IIT Guwahati) | IIT Guwahati | Individual / School | June 2025 (expected) | Prelims: July 2025, Finals: Sep 2025 |
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Registration Options: Individual & School
Last Dates:
School Registration: 15th September 2025
Individual Registration: 25th October 2025Indian Talent+1Wikipedia+1lidayvenita.pages.dev+2Indian Talent+2Indian Talent+2
Online Exam Dates:
International Computer Olympiad (ICO): 1st Dec 2025 & 5th Jan 2026
National Social Studies Olympiad (NSSO): 2nd Dec 2025 & 6th Jan 2026
General Knowledge International Olympiad (GKIO): 3rd Dec 2025 & 7th Jan 2026
English International Olympiad (EIO): 4th Dec 2025 & 8th Jan 2026
International Science Olympiad (ISO): 5th Dec 2025 & 9th Jan 2026
International Maths Olympiad (IMO): 6th Dec 2025 & 10th Jan 2026
National Essay Olympiad (NESO): 8th Dec 2025 & 12th Jan 2026
International Drawing Olympiad (IDO): 9th Dec 2025 & 13th Jan 2026Sof Olympiad Trainer+3Indian Talent+3Indian Talent+3Indian Talent+1Olympiad Topper+1
Offline Exam Dates (via Schools):
17th–22nd November 2025 (subject-wise schedule)
Registration: Through Schools Only
Exam Dates (Schools choose one date per subject):
International English Olympiad (IEO): 26th Sept, 11th Oct, 26th Nov 2025
National Science Olympiad (NSO): 13th Nov, 27th Nov, 11th Dec 2025
International Mathematics Olympiad (IMO): 12th Nov, 28th Nov, 12th Dec 2025
International Computer Science Olympiad (ICSO): 24th Sept, 9th Oct, 22nd Jan 2026 NextGen Learners+3Allen+3Indian Talent+3Unified Council+3Sof Olympiad Trainer+3School Connect Online+3
Registration: Individual & School
Exam Dates:
Unified International Computer Olympiad (UICO): 28th Dec 2025
Unified International English Olympiad (UIEO): 4th Jan 2026
Unified International Mathematics Olympiad (UIMO): 11th Jan 2026
National Level Science Talent Search Examination (NSTSE): 25th Jan 2026 Wikipedia
Registration: Individual & School
Online Exam Dates:
Class 7–10: 16th Nov 2025
Class 4–6: 22nd Nov 2025
Class 1–3: 23rd Nov 2025
Registration Deadline: 15th Nov 2025 jeanettejholbrook.pages.dev+6PW Live+6Indian Talent+6istse.orgistse.org
Registration: Individual & School
Sample Exam Dates:
International Physics Olympiad (IPhO): 12th Apr, 10th May, 14th Jun, 15th Oct, 12th Nov 2025
International Chemistry Olympiad (IChO): 26th Apr, 24th May, 28th Jun, 4th Nov, 7th Oct 2025
International Math Olympiad (IMO): 5th Apr, 3rd May, 7th Jun, 13th Oct 2025
International English Olympiad (IEO): 19th Apr, 17th May, 21st Jun, 9th Oct, 6th Nov 2025 NextGen LearnersSchool Connect Online
Registration: Through Schools Only
Stage 1 Exams (Tentative):
National Standard Examination in Physics (NSEP)
National Standard Examination in Chemistry (NSEC)
National Standard Examination in Biology (NSEB)
National Standard Examination in Astronomy (NSEA)
National Standard Examination in Junior Science (NSEJS)
Usually conducted in late November Wikipedia+8Wikipedia+8Wikipedia+8School Connect OnlineWikipedia+3Wikipedia+3Wikipedia+3
Eligibility: Students of Class 8 to 10
Registration: Individual
Exam Format: Online preliminary test followed by written and quiz rounds at Cochin University of Science and Technology (CUSAT) vykybgwenora.pages.dev+2Wikipedia+2Olympiad Topper+2Wikipedia+4PW Live+4lidayvenita.pages.dev+4
Eligibility: Classes 9–12
Registration: Individual or School
Exam Format: Team-based logical reasoning and problem-solving competition
Prelims: Typically conducted in July
Finals: Held at IIT Guwahati during Techniche festival Indian Talent+4NextGen Learners+4Wikipedia+4Olympiad Topper+3istse.org+3School Connect Online+3Wikipedia
