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How COSMO Challenge works
Everything a school coordinator needs before registering — the current contest, bands and scoring, and the process from registration to results.
Mathematics — live now
| Contest | Registration Opens | Deadline | Contest Date | Result |
|---|---|---|---|---|
| Mathematics | 31 August 2026 | 21 October 2026 | 21 October 2026 | To be announced |
| Registration Fee | Window | Amount |
|---|---|---|
| Early Bird | Sep 1 – 30 September 2026 | Rs. 1,000 |
| Standard | From Oct 1, 2026 | Rs. 1,200 |
Bands & Scoring
Three bands, grades 6 through 11. Difficulty and negative marking increase by band.
Class 6–7
Band I
- Questions
- 30
- Scoring
- 3 tiers — 3, 4, 5 points
- Negative marking
- None
Class 8–9
Band II
- Questions
- 40
- Scoring
- Tiered scoring
- Negative marking
- Applies
Class 10–11
Band III
- Questions
- 45
- Scoring
- 40 standard + 5 Olympiad-tier
- Negative marking
- Applies, stricter
5 Olympiad-tier questions: Separate from the 40 standard questions — follows its own attempt-or-skip rule, not standard negative marking.
From registration to results.
- 01Register your institute
Sign up with your school's email and submit the student roster. Band is assigned automatically from each student's grade.
- 02Pay & upload proof
Bank transfer only. Upload the receipt; admins verify within 24–48 hours.
- 03Sit the paper
October 22, 2026. Held at your own school — no travel required.
- 04Results
Score, band rank, and toppers published to your portal after grading.