NSO (ISO) vs iOS vs NSTSE vs CSO: science olympiads compared
| Olympiad | Organiser | Registers | Where | Fee | Next date |
|---|---|---|---|---|---|
| NSO (now ISO) | SOF | School only | In school | ₹170 | 19 Nov |
| NSTSE | Unified Council | You or school | School or home | ₹350 online | 24 Jan |
| CSO | CREST | You or school | Online, at home | ₹275 | 3 Dec |
| SilverZone iOS | SilverZone | You or school | School or home | Fee at registration | 19 Nov |
| Little Star EVS Olympiad | SilverZone | You or school | School or home | Fee at registration | 9 Dec |
| HSO | Humming Bird | You or school | School or home | ₹150 to ₹200 | Dates not out |
| Indian Talent ISO | Indian Talent | You or school | School or home | ₹175 school · ₹500 online | 2 Dec |
| IFSO | IOF | You or school | Online, at home | ₹150 | 5 Dec |
Which science olympiads can I register my child for myself?
NSTSE, CSO, SilverZone iOS, Little Star EVS Olympiad, HSO, Indian Talent ISO, IFSO.
Only through the school: NSO (now ISO).
Which science olympiads can my child take from home?
NSTSE, CSO, SilverZone iOS, Little Star EVS Olympiad, HSO, Indian Talent ISO, IFSO.
Which science olympiad is best?
None is best for every child. They follow the school syllabus with multiple-choice papers; the real differences are who can register, where your child sits the paper, the fee and the rounds. Start with the ones your child can take, and their dates.
What is the difference between NSO (now ISO) and NSTSE?
NSO (now ISO) is run by SOF. Who registers: school only. Where: in school. Fee: ₹170. NSTSE is run by Unified Council. Who registers: you or school. Where: school or home. Fee: ₹350 online.
What is the difference between NSO (now ISO) and CSO?
NSO (now ISO) is run by SOF. Who registers: school only. Where: in school. Fee: ₹170. CSO is run by CREST. Who registers: you or school. Where: online, at home. Fee: ₹275.
What is the difference between NSO (now ISO) and SilverZone iOS?
NSO (now ISO) is run by SOF. Who registers: school only. Where: in school. Fee: ₹170. SilverZone iOS is run by SilverZone. Who registers: you or school. Where: school or home. Fee: shown at registration.
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