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Indian Computing Olympiad, 2027

The Zonal Informatics Olympiad (ZIO-2027) will be held on Saturday, 21 November, 2026. ZIO-2027 will be conducted in cooperation with TCS iON, a division of Tata Consultancy Services. Online registration is open till Friday, 6 November, 2026, 21:00 IST (9:00 pm).
The Zonal Computing Olympiad (ZCO-2027) will be held on Saturday, 12 December, 2026. ZCO-2027 will be conducted in cooperation with CodeChef. Online registration is open till Tuesday, 1 December, 2026, 21:00 IST (9:00 pm).
The Indian National Olympiad in Informatics (INOI-2027) will be held on Saturday, 6 Februrary, 2027 from 2:00 pm to 5:00 pm.

Zonal Computing Olympiad, 2027 (ZCO-2027)

The Zonal Computing Olympiad, 2027 (ZCO-2027) will be held from 2:00 pm to 5:00 pm on Saturday, 12 December, 2026 at centres across the country. ZCO will be conducted in cooperation with CodeChef. Online registration is open upto 1 December, 2026.

Exam centres

Centres for ZCO-2027 will be organized at the following cities.

Ahmedabad, Allahabad, Bangalore, Bhopal, Bhubaneswar, Bokaro, Chandigarh, Chennai, Cochin, Coimbatore, Dehradun, Delhi NCR, Goa, Guwahati, Gwalior, Hyderabad, Indore, Jaipur, Jammu, Kanpur, Kolkata, Kota, Lucknow, Mangalore, Mumbai, Nagpur, Patna, Pune, Raipur, Ranchi, Roorkee, Surat, Thiruvananthapuram, Varanasi, Visakhapatnam

The address of the exam centre in each city will be announced about a week before the exam. Admit Cards will be available about 5 days before the exam.

Individual registration

To register, use this link.
The registration fee is Rs 472 (Rs 400 + GST), to be paid online (credit card, debit card, net banking, UPI). Transaction fees may be added by the registration portal, depending on the mode of payment.
Registration for ZCO-2027 is open till 21:00 (9:00 pm) IST, 1 December, 2026.
You will need an Admit Card from IARCS to write ZCO-2027. Admit cards will be available approximately 5 days before the exam.
If you have any queries, please write to ico@iarcs.org.in.

Bulk registration

Bulk registration is only available for registering 10 or more participants at the same time. For details, please write to ico@iarcs.org.in.

Exam details

ZCO-2027 is a programming test. The languages allowed for ZCO-2027 are C, C++, Java and Python. Details about compilers, IDEs and other aspects of the contest environment will be announced soon.
The syllabus for ZCO is the list of Basic Topics in the ICO Online Study Material
Previous question papers and solutions are available in the ICO Archives.
You can also solve some past ZCO questions online at CodeChef's ZCO Practice site.

Zonal Informatics Olympiad, 2027 (ZIO-2027)

The Zonal Informatics Olympiad, 2027 (ZIO-2027) will be held on Saturday, 21 November, 2026 from 2:00 pm to 5:00 pm at centres across the country. ZIO-2027 will be conducted in cooperation with TCS iON, a division of Tata Consultancy Services. Online registration is open upto 6 November, 2026.

Exam centres

Centres for ZIO-2027 will be arranged in the following cities.

Ahmedabad, Allahabad, Amritsar, Bangalore, Bhilai, Bhopal, Bhubaneswar, Bokaro Steel City, Chennai, Cochin, Coimbatore, Delhi NCR, Gwalior, Guwahati, Hyderabad, Jaipur, Jammu, Jodhpur, Kanpur, Kolkata, Kota, Lucknow, Mapusa, Mohali, Mumbai, Nagpur, Patna, Pune, Ranchi, Roorkee, Surat, Tiruchi, Trivandrum, Ujjain, Varanasi, Visakhapatnam

The address of the exam centre in each city will be announced after registrations close.

Individual registration

To register, use this link.
The registration fee is Rs 472 (Rs 400 + GST), to be paid online (credit card, debit card, net banking, UPI). Transaction fees may be added by the registration portal, depending on the mode of payment.
Registration for ZIO-2027 is open till 21:00 (9:00 pm) IST, 6 November, 2026.
You will need an Admit Card from IARCS to write ZIO-2027. Admit cards will be available approximately 5 days before the exam.
If you have any queries, please write to ico@iarcs.org.in.

Bulk registration

Bulk registration is only available for registering 10 or more participants at the same time. For details, please write to ico@iarcs.org.in.

Exam details

ZIO-2027 will be administered as a computerized test, on the TCS iON platform. The question paper pattern will be the same as in previous years. You will work out the solutions using pen and paper and only submit your final answers. Instead of a printed question paper and answer sheet, you will read the question paper on the screen and type in your answers on the computer.
The syllabus for ZIO is the list of Basic Topics in the ICO Online Study Material
Previous question papers and solutions are available in the ICO Archives: ZIO-2003, ZIO-2004, ZIO-2005, ZIO-2006, ZIO-2007, ZIO-2008, ZIO-2009, ZIO-2010, ZIO-2011, ZIO-2012. ZIO-2013. ZIO-2014, ZIO-2015, ZIO-2016, ZIO-2017, ZIO-2018, ZIO-2019, ZIO-2020, ZIO-2021. ZIO-2022. ZIO-2023, ZIO-2024, ZIO-2025, ZIO-2026.
You can also find past ZIO question papers with solutions and explanations at CodeChef's ZIO site.

Indian Computing Olympiad, 2026

International Olympiad in Informatics, 2026

The International Olympiad in Informatics, 2026 (IOI-2026) was hosted by Uzbekistan during the period 9 August–16 August, 2026. The following team represented India at IOI-2026.

Samik Goyal, DAV Public School, Patiala
Neev Jayprakash Kataria, Krishna International School, Rajkot
Naman Singh, Narayana e-Techno School, Mohali
Aviansh Verma, Delhi Public School, Vasant Kunj, New Delhi

Neev Jayprakash Kataria, Naman Singh, Aviansh Verma, Samik Goyal

The Indian team to IOI-2026 won two medals. Samik Goyal won a silver medal and Aviansh Verma won a bronze medal.

The Leader and Deputy Leader of the Indian contingent were Madhavan Mukund, Chennai Mathematical Institute and Shreyan Ray, IIT Kharagpur, respectively.

The Indian team's travel to IOI was sponsored by Sasken.

International Olympiad in Informatics Training Camp, 2026

The Indian team for IOI is selected at the International Olympiad in Informatics Training Camp (IOITC). IOITC-2026 was held in Chennai during the period 1–12 June, 2026.

Faculty for IOITC-2026:

Arjun Arul, IIT Gandhinagar (Coordinator)
Jatin Yadav, IIT Delhi
Paras Kasmalkar, University of Wisconsin-Madison
Naveen Kulkarni, IIT Kanpur
Yash Thakker, National University of Singapore
Deepak Gour, Newton School
Srivaths P, IIT Gandhinagar
Shreyan Ray, IIT Kharagpur
Anshu Garg, Composio
Aryan C, IIT Kanpur
Archit Manas, University of Oxford

We thank Sasken for sponsoring the camp and Chennai Mathematical Institute for hosting the camp.

European Girls' Olympiad in Informatics, 2026

The European Girls' Olympiad in Informatics 2026 was organized in Cesenatico, Italy during the period 12–18 May, 2026. The following team represented India at EGOI-2026.

Lyra Floyd Gonsalves, PACE Jr. Science College Dadar, Mumbai
Swasti Vitthal Patil, Unschooled, Pune
Mansi Sane, JBCN International School, Parel, Mumbai
Diya Sathishdev, Home school, Chennai

The Leader of the Indian contingent was Sonia Garcha, from CSpathshala.

Lyra Floyd Gonsalves, Mansi Sane,
Swasti Vitthal Patil, Diya Sathishdev, Sonia Garcha

Swasti Vitthal Patil won a gold medal, India's first ever gold medal at EGOI. Mansi Sane won a silver medal, Diya Sathishdev won a bronze medal, and Lyra Floyd Gonsalves was awarded Honourable Mention.

The Indian team's participation in EGOI-2026 has been made possible by generous support from CodeChef and Sasken.

Asia-Pacific Informatics Olympiad, 2026

The Asia-Pacific Informatics Olympiad 2026 (APIO-2026) was organized online by Taiwan during the period 9–10 May, 2026. All students who received medals in INOI-2026 or were selected for IOITC-2026 were invited to represent India at APIO-2026. The top six contestants from each country are eligible to receive medals at APIO.

India won five medals at APIO-2026. Samik Goyal won a gold medal. Naman Singh, Mohammad Farhat, Arjun Tyagi and Avighna Chhatrapati won bronze medals. The sixth official participant for India at APIO-2026 was Aahan Sarin.

Question papers and other material from …