Who can take part in Indian Computing Olympiad?

Up to Class 12. School students up to Class 12. Open to: India.

Is Indian Computing Olympiad free?

There's an entry fee. See the official site for current fees. Registration opens in early October 2026. Fee ₹472 (₹400 + GST).

How can my child prepare for Indian Computing Olympiad?

The key skills are algorithms, problem solving, C++/Java/Python. CodingChamp courses that build them: C++ & Competitive Programming, Python, Java Programming. Regular practice on real projects matters more than last-minute cramming.

Olympiad · 2026

Indian Computing Olympiad (ZIO, ZCO, INOI)

India's official route to the International Olympiad in Informatics. It starts with a written problem-solving round (ZIO) and a programming round (ZCO), leading to the national olympiad (INOI).

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Key dates

ZIO 2027 exam21 Nov 2026

ℹ️ Registration opens in early October 2026. Fee ₹472 (₹400 + GST).

Who can take part

Up to Class 12. School students up to Class 12.

Skills it needs, and how to prepare

Key skills: Algorithms, problem solving, C++/Java/Python.

Questions parents ask

ZIO 2027 exam: 21 Nov 2026. It usually runs ZIO in November, then ZCO, INOI and the training camp. Always confirm on the official site.

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Details were checked on the official site in October 2026. Please confirm dates and rules with IARCS before entering. CodingChamp is not affiliated with this event.

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