ZIO — older updates
Every cycle of news + important dates we've captured for Zonal Informatics Olympiad, oldest cycles at the bottom. Live information is on the main exam page; this archive preserves what each previous cycle officially announced.
Older news (16)
IARCS has confirmed that details for the Indian Computing Olympiad 2027 cycle will be announced in the second half of September 2026, with registrations opening in October 2026.
Read full notice →Archived 23 Aug 2026
The Indian team of four students selected through the ICO process will represent India at the International Olympiad in Informatics 2026 to be held in Uzbekistan.
Read full notice →Archived 23 Aug 2026
IARCS conducted the Indian National Olympiad in Informatics (INOI-2026) on February 14, 2026. Approximately 30 top performers will be selected for the IOI Training Camp.
Read full notice →Archived 23 Aug 2026
The Zonal Informatics Olympiad 2026 results were announced in the third week of December 2025, with qualified students advancing to INOI-2026 held in February 2026.
Read full notice →Archived 23 Aug 2026
IARCS will announce the complete schedule and registration process for the 2027 cycle in the second half of September. Registrations are expected to open in October 2026.
Read full notice →Archived 20 Aug 2026
The national programming round held on February 14, 2026 awarded 10 gold, 20 silver, and 31 bronze medals. Top 36 students have qualified for the International Olympiad training camp.
Read full notice →Archived 20 Aug 2026
Out of 767 registered students, 612 appeared for ZIO-2026 held on November 15, 2025. A total of 152 students successfully qualified for the national round INOI-2026.
Read full notice →Archived 20 Aug 2026
IARCS has confirmed that details for ICO-2027 (including ZIO-2027) will be announced in the second half of September 2026, with registrations opening in October 2026.
Read full notice →Archived 29 Jul 2026
The International Olympiad in Informatics 2026 will take place in Tashkent, Uzbekistan from August 9–16, 2026. 36 Indian students qualified for IOITC-2026 to compete for team selection.
Read full notice →Archived 29 Jul 2026
Swasti Vitthal Patil won India's first-ever gold medal at EGOI-2026 in Italy. Mansi Sane won silver and Diya Sathishdev won bronze, showcasing the strength of India's Informatics Olympiad pathway.
Read full notice →Archived 29 Jul 2026
767 students registered for ZIO-2026, with 612 appearing for the exam held on 15 November 2025. 152 students qualified through ZIO for the Indian National Olympiad in Informatics.
Read full notice →Archived 29 Jul 2026
Swasti Vitthal Patil created history by winning India's first gold medal at EGOI-2026 held in Italy. The Indian team also secured one silver, one bronze, and one honourable mention.
Read full notice →Archived 20 Aug 2026
Students who cleared ZIO 2026 can now register for the Indian National Olympiad in Informatics (INOI). The registration deadline is in the coming weeks, and participants must complete enrollment to be eligible for the national-level competition.
Read full notice →Archived 5 Jul 2026
The Indian Association for Research in Computing Science (IARCS) has announced ZIO 2026 results. Qualified students can now check their scores and eligibility for INOI on the official portal. Successful candidates will receive detailed instructions for the next round.
Read full notice →Archived 5 Jul 2026
IARCS has published preliminary information for ZIO 2027, including recommended topics in algorithms, data structures, and problem-solving. Students preparing for the next cycle should focus on computational thinking and programming fundamentals.
Read full notice →Archived 5 Jul 2026
The official IARCS website now features updated practice problems and past ZIO question papers. These resources are designed to help students strengthen their algorithmic problem-solving skills for upcoming Olympiad competitions.
Read full notice →Archived 5 Jul 2026
Older dates (30)
IOI Training Camp 2027
Sun, 30 May, 2027Top 30-36 students from INOI participate in intensive training camp
Archived 20 Aug 2026
IOITC selection camp (tentative period begins)
Fri, 16 Apr, 2027Training camp for International Olympiad in Informatics team selection
Archived 5 Jul 2026
🏅INOI 2027 exam date
Wed, 17 Mar, 2027Indian National Olympiad in Informatics conducted for ZIO qualifiers
Archived 5 Jul 2026
🏅INOI-2027 exam date
Tue, 16 Mar, 2027National round programming exam conducted in C++ only
Archived 20 Aug 2026
INOI 2027 registration for ZIO qualifiers
Mon, 15 Feb, 2027Registration window opens for qualified students to enroll in INOI
Archived 5 Jul 2026
🏅INOI-2027 exam date (expected)
Mon, 15 Feb, 2027Typically mid-February; programming exam in C++
Archived 29 Jul 2026
ZIO 2027 results announcement
Wed, 10 Feb, 2027Results published on IARCS website with list of qualifiers for INOI
Archived 5 Jul 2026
🏅ZCO-2027 exam date
Tue, 9 Feb, 2027Programming contest supporting C++, Java and Python
Archived 20 Aug 2026
🏅INOI-2027 exam (expected)
Mon, 8 Feb, 2027Second round programming test, C++ only
Archived 23 Aug 2026
🏅ZCO-2027 exam (expected)
Mon, 1 Feb, 2027Programming exam supporting C++, Java, and Python
Archived 23 Aug 2026
🏅ZIO 2027 exam date
Mon, 11 Jan, 2027Zonal Informatics Olympiad examination conducted at designated centers
Archived 5 Jul 2026
ZIO-2027 result declaration
Sun, 10 Jan, 2027Qualified students advance to INOI round
Archived 20 Aug 2026
ZIO 2027 registration deadline
Thu, 17 Dec, 2026Last date to complete registration for ZIO 2027
Archived 5 Jul 2026
ZIO-2027 results expected
Thu, 17 Dec, 2026Typically announced in December
Archived 29 Jul 2026
🏅ZIO-2027 exam date
Wed, 16 Dec, 20263-hour written examination testing algorithmic and logical reasoning
Archived 20 Aug 2026
ZIO-2027 results announcement (expected)
Tue, 8 Dec, 2026Qualified candidates advance to INOI-2027
Archived 23 Aug 2026
Registration deadline (ICO-2027)
Thu, 26 Nov, 2026Last date to register for ZIO-2027
Archived 20 Aug 2026
🏅ZIO-2027 exam date (expected)
Tue, 17 Nov, 2026Typically mid-November; 3-hour written exam at 35+ centres
Archived 29 Jul 2026
🏅ZIO-2027 exam day (expected)
Tue, 10 Nov, 2026Written exam held at centers across India, 2 PM to 5 PM
Archived 23 Aug 2026
ZIO-2027 admit card release (expected)
Thu, 5 Nov, 2026Hall tickets available approximately 5 days before exam
Archived 23 Aug 2026
ICO-2027 registration deadline (expected)
Mon, 2 Nov, 2026Typically end of October/early November
Archived 29 Jul 2026
ZIO-2027 registration deadline (expected)
Sat, 31 Oct, 2026Last date to register for Zonal Informatics Olympiad 2027
Archived 23 Aug 2026
ZIO 2027 registration opens
Fri, 23 Oct, 2026Online registration portal opens for next year's Zonal Informatics Olympiad
Archived 5 Jul 2026
ICO-2027 registration opens
Tue, 13 Oct, 2026Expected October 2026; fee typically Rs 472 (Rs 400 + GST)
Archived 29 Jul 2026
Registration portal opens (ICO-2027)
Mon, 12 Oct, 2026Online registration begins for ZIO and ZCO exams
Archived 20 Aug 2026
ICO-2027 registration opens
Sun, 4 Oct, 2026Online registration portal opens for ZIO and ZCO 2027
Archived 23 Aug 2026
ICO-2027 details announcement expected
Wed, 23 Sept, 2026Second half of September 2026 per IARCS
Archived 29 Jul 2026
ICO-2027 notification release
Sat, 12 Sept, 2026Official announcement of exam dates and registration process for the 2027 cycle
Archived 20 Aug 2026
ICO-2027 notification announcement expected
Wed, 9 Sept, 2026IARCS to announce detailed schedule for ICO-2027 cycle
Archived 23 Aug 2026
🏅IOI-2026 (International Olympiad in Informatics) in Tashkent
Sun, 9 Aug, 2026August 9–16, 2026; India's top 4 students from IOITC compete
Archived 29 Jul 2026
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