Indian National Olympiad (INO) 2023 registration for the Indian Olympiad Qualifier (IOQ) has been closed. The exam dates have been announced. INO is the second stage of the qualifying exam for the International Science Olympiad. The Indian National Science Olympiad exam is conducted by the Homi Bhabha Centre for Science Education (HBCSE). The candidates who have qualified in the National Standard Examination (NSE) are eligible to participate in the Indian National Olympiad. The exam is conducted at 18 centres across India in various Science subjects like Physics, Chemistry, Biology, Astronomy, and Junior Science. To get more details about the INO Registration, exam dates, syllabus, eligibility, question papers, result, etc, read the complete article.
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Indian National Olympiad 2027 Latest Update as on 05 Sep 2026
Contains
Checked on 05 Sep 2026
As of 05 Sep 2026, no official notification for Indian National Olympiad 2027 has been released; conducted by HBCSE and IAPT, the cycle is expected to begin with IOQM registration around October–November 2026.
| Exam | Indian National Olympiad 2027 |
|---|---|
| Status | IOQM (Indian Olympiad Qualifier in Mathematics) registration expected to open around Oct–Nov 2026 (last year: opened Oct 2025) |
| Next expected | IOQM exam expected around Jan 2027 (last year: Jan 2026) |
| Official website | hbcse.tifr.res.in |
| Last verified | 05 Sep 2026 |
As of 05 Sep 2026, no official notification for the Indian National Olympiad 2027 has been issued by the Homi Bhabha Centre for Science Education (HBCSE) or the Indian Association of Physics Teachers (IAPT), the bodies that jointly administer the Olympiad programme in India. The 2026–27 Olympiad cycle is yet to formally begin, and students are currently in the preparatory phase between cycles. Based on the previous year's pattern, the cycle is expected to kick off with IOQM (Indian Olympiad Qualifier in Mathematics) and corresponding subject-level stage-1 exams around October–November 2026, followed by stage-2 National Standard Examinations and eventual Indian National Olympiad exams in early 2027. Aspirants should regularly monitor hbcse.tifr.res.in for official announcements on registration dates, syllabi, and eligibility criteria, and begin subject preparation now using prior-year question papers available on the same portal.
- IOQM (Indian Olympiad Qualifier in Mathematics) registration expected to open around Oct–Nov 2026 (last year: opened Oct 2025)
- IOQM exam expected around Jan 2027 (last year: Jan 2026)
- Regional Mathematical Olympiad / subject-wise stage-2 exams expected Feb–Mar 2027 (last year: Feb–Mar 2026)
- Indian National Olympiad (INO) stage exams expected Mar–Apr 2027 (last year: Mar–Apr 2026)
- OCSC (Orientation cum Selection Camp) expected May–Jun 2027 at HBCSE, Mumbai (last year: May–Jun 2026)
- International Olympiad teams expected to be finalised by Jun–Jul 2027 for competitions in Jul–Aug 2027
Sources: HBCSE – Homi Bhabha Centre for Science Education (Official Olympiad Body)
- INO 2023 results have been released. The list of qualified candidates for the Orientation-cum-Selection Camps (OCSCs) in different subjects is available on the HBCSE website.
- OCSCs will be held from August 1 to 12, 2023. The OCSCs will be held at various centers across India.
- The final list of Indian team for the International Mathematical Olympiad (IMO) 2023 will be announced in September 2023.
Indian National Olympiad 2023 Exam Status
- The Indian National Olympiad (INO) is a national-level Olympiad for school students in Mathematics, Physics, Chemistry, Biology, and Junior Science. The INO is conducted by the Homi Bhabha Centre for Science Education (HBCSE).
- The INO 2023 was held on February 5, 2023. The exam was held in two shifts: Shift I from 10:00 AM to 12:00 Noon and Shift II from 2:00 PM to 4:00 PM.
- The INO 2023 was a competitive exam and the cutoff for qualification was quite high. The candidates who have qualified the INO 2023 will be invited to attend the OCSCs in different subjects. The OCSCs will be held to select the Indian team for the International Mathematical Olympiad (IMO) 2023.
- The IMO 2023 will be held in Oslo, Norway from July 6 to 16, 2023. The IMO is an annual international mathematics competition for school students. The IMO is one of the most prestigious mathematics competitions in the world.
The candidates who are eligible to participate in the Indian National Olympiad must check the exam status of the same. The details of the INO 2023 exam is given below:
| Particulars | Status |
| Indian Olympiad Qualifier (IOQ) Registration |
Closed |
| IOQ 2023-22 Exam | January 2022 |
Indian National Olympiad 2023 Dates
The Indian National Olympiad for various subjects will take place on the specified dates. However, the exact dates of the INO have not been announced. Candidates can check the tentative dates of the Indian National Olympiad 2023 from the table given below:
| Important Events | Dates (Announced) |
| Last Date to Register for INO Exam | 15 November 2023 |
| Date of the INO Exam |
|
| Availability of Provisional answer key | a few days after the exam |
| Due date of challenging the answer key | one week after the release of the provisional answer key |
| Final releasing of the answer key | February 2022 |
| Declaration of the Exam Results | March 2022 |
| Declaration of the Final Results after Revaluation | March 2022 |
Indian National Olympiad 2023 Exam Pattern
Major Changes This Year
No changes to the Indian National Olympiad 2027 pattern, syllabus, or eligibility have been officially announced yet; the structure is expected to follow the 2026 cycle.
No major change has been officially announced yet for the Indian National Olympiad 2027 cycle. As of 05 Sep 2026, HBCSE has not released any notification indicating alterations to the multi-stage exam structure, subject syllabi, eligibility age/class criteria, or the selection process leading to international Olympiads. It is tentatively expected that the 2026–27 cycle will retain the same structure introduced in recent years: Stage 1 (IOQM/NSEP/NSEC etc.), Stage 2 (INO), and Stage 3 (OCSC). Any official changes will be announced on hbcse.tifr.res.in.
The candidates who are going to participate in the INO must check the exam pattern and type of questions in the exam. They can check the details of the exam pattern from below:
- Type of Question: Objective type questions
- Mode of the Exam: Online (CBT)
- Number of Questions: 80
- Meduim of Question Paper: English/ Hindi
- Negative Marking: Yes
Indian National Olympiad 2023 Syllabus
Students participating in the INO must go through the syllabus of the exam, to prepare for the Olympiad. The basic syllabus details for each subject in the Indian National Olympiad exam is given below:
| Examinations | INO Syllabus |
| Indian National Astronomy Olympiad (INAO) | Is broadly equivalent to senior secondary level (up to and including Class XII) of CBSE. There will be greater emphasis on Physics, Mathematics, and Elementary Astronomy. |
| Indian National Biology Olympiad (INBO) | Is broadly equivalent to senior secondary level (up to and including Class XII) of CBSE. |
| Indian National Chemistry Olympiad (INChO) | Is broadly equivalent to senior secondary level (up to and including Class XII) of CBSE. |
| Indian National Junior Science Olympiad (INJSO) | Is broadly equivalent to the secondary school level (up to and including Class X) of CBSE. All the basic subjects of science (Biology, Chemistry, and Physics) and Mathematics may have roughly equal emphasis. |
| Indian National Physics Olympiad (INPhO) | Is broadly equivalent to senior secondary level (up to and including Class XII) of CBSE. |
Indian National Olympiad 2023 Result
Once the Olympiad for all the subjects is over, the conducting authority will announce the result of the Indian National Olympiad Result.
- The Indian National Science Olympiad Result will be published on the official website.
- Candidates can check their names in the list of the selected candidates for the International Science Olympiad (ISO).
- Students can check their marks in the Olympiad exam by entering their INO Registration number or roll number and name.
What after Qualifying Indian National Olympiad 2023?
Once the result of the Indian National Olympiad is announced, the selected candidates will be eligible for the next stage of the Olympiad.
- The top students from the INOs (approximately 35 in each subject) will be invited for the third stage, which is the Orientation-cum-Selection Camps (OCSCs).
- The OCSC will be held at HBCSE during April to June months.
- At these camps, are trained for the International Olympiad on the theoretical, experimental, and observational (for astronomy) components.
- The students are given the training to develop their conceptual and problem-solving skills.
- In astronomy, students are trained in basic notions in astrophysics, astronomical data analysis, and night sky observations.
- Finally, on the basis of performance in these tests, few students will be selected to represent India at the international Olympiads.
Indian National Olympiad 2023 Application Form
The candidates can register for the Indian National Olympiad through online mode. Those participants who have qualified in the National Standard Examination (NSE) can enroll for the INO. The steps to do the online registration for the Indian National Olympiad is given below:
- Initially, the candidates will have to visit the portal of the conduction authority.
- Since the candidates have already registered themselves for the National Standard Examination (Stage I), they can log in using the user id and password.
- After that, the applicant will have to open the INO application form from the link available on the home page.
- All the details in the INO application form need to be entered such as personal, educational, academic, residentials, contact, and many more.
- Then the applicants will have to attach a photograph of passport size.
- At the time of registration, students can choose their examination centre.
- Then the applicants may check the application fee and submit the form.
- Once the application fee is paid, the candidates can take a printout of the application form for future references.
Indian National Olympiad 2023 Eligibility Criteria
The applicants must read the eligibility criteria for each subject before applying for the Olympiad exam. The authorities will accept the application form of only those candidates who fulfill the minimum eligibility requirements for the exam. The details of the eligibility criteria for the Indian National Science Olympiad (INSO) is given below:
- Only Indian Students can apply for the Indian National Olympiad.
- The applicant who wants to apply for the INO must have appeared for any of the exams of NSEA, NSEP, NSEB, NSEC.
- Students will be eligible for INO (in the particular subject) if they score equal to or greater than the Minimum Admissible Score (MAS). The MAS for a given subject will be 50% of the average of the top ten scores in that subject.
- Students who score above the merit index will automatically qualify for INO for each subject. The merit index in a subject is defined as 80% of the average of the top ten scores in that subject rounded off to the nearest lower integer.
- The quota for each state and Union Territory will be similar to the student’s quota, as decided by the National Talent Search Examination (NTSE). The total number of students to be selected per subject is 300 ( 500 for Astronomy).
- A minimum of one student must be selected from each state or Union Territory.
- As per HBCSE norms, 300 students should be selected for the INO stage 2 exam. In case the norms are not met, the additional students will be selected purely merit-wise, provided they score more than the Minimum Admissible Score (MAS) until the target number of 300 students is reached.
- Students who have already represented India in the International Olympiad (IOAA, IBO, IChO, IJSO, IPhO, IPhO, or IAO- Jr) do not need to appear for NSE for that particular subject. Such students can send a written request to the National Coordinator to directly sit for the second stage, i.e., the Indian National Olympiad.
Important Links
Click Here to register online for IOQ 2023
Indian National Olympiad 2023 Highlights
| Name of the Exam | Indian National Olympiad 2023 |
| Short Name | INO 2023 |
| Conducting Authority | Homi Bhabha Centre for Science Education (HBCSE) and Tata Institute of Fundamental Research (TIFR) |
| Purpose of the Exam | to select the meritorious candidates for International Olympiad |
| Level of Exam | National |
| Registration | Online Mode |
| Exam Dates | February 2022 |
| Official website | olympiads.hbsce.tifr.res.in |
About HBCSE
Homi Bhabha Centre for Science Education (HBCSE) is an organization that promotes the interest in science education and research among secondary and higher secondary students. The broad goals of the Centre are to promote equity and excellence in science and mathematics education from primary school to undergraduate college level and encourage the growth of scientific literacy in the country. HBCSE conducts the International Science and Maths Olympiad to select the students to represent India at the International Olympiads.
FAQs on INO 2023
Q1. Can I directly sit for the Indian National Olympiad without giving the National Standard Examination (NSE)?
Ans: If a student has already represented India in any International Olympiad do not need to sit again for the NSE. They can directly appear in the INO 2023 by notifying the coordinator.
Q2. What is the registration fee for Indian National Olympiad 2023?
Ans: The registration fees for INO have not been disclosed yet. We will notify it as soon as we get the information.
Q3. Do I need to register again for the Indian National Olympiad 2023?
Ans: Yes, the shortlisted candidates who have qualified in the NSE must again register themselves to participate in the Indian National Olympiad 2023.
Frequently Asked Questions
When will the Indian National Olympiad 2027 notification be released?
No official notification has been released as of 05 Sep 2026. Based on previous years, the notification for Stage 1 exams is tentatively expected around October–November 2026 on hbcse.tifr.res.in.
Who conducts the Indian National Olympiad?
The Indian National Olympiad is conducted by HBCSE (Homi Bhabha Centre for Science Education, TIFR) in coordination with IAPT and other subject-specific bodies under the aegis of the Government of India.
What subjects are covered under the Indian National Olympiad 2027?
The Olympiad covers Mathematics, Physics, Chemistry, Biology, and Astronomy. Each subject has its own multi-stage selection process leading to the respective International Olympiad.
What is the eligibility criteria for Indian National Olympiad 2027?
No updated eligibility has been officially announced yet. Typically, students must be Indian citizens studying in Class 8–12, below 20 years of age, and not enrolled in any university-level programme. Confirm on hbcse.tifr.res.in when notified.
What is the exam pattern for the Indian National Olympiad 2027?
Based on recent years, the exam follows a multi-stage pattern: Stage 1 qualifier, Stage 2 National Standard Exam, Stage 3 Indian National Olympiad (INO), and Stage 4 Orientation cum Selection Camp (OCSC). No changes have been officially confirmed for 2027.
When is the IOQM 2027 expected to be held?
IOQM (Indian Olympiad Qualifier in Mathematics) is tentatively expected in January 2027, with registration likely opening in October–November 2026, based on the previous year's schedule. No official date has been announced yet.
How can students prepare for the Indian National Olympiad 2027?
Students should study NCERT books thoroughly, solve previous years' Olympiad question papers available on hbcse.tifr.res.in, and refer to advanced subject-specific texts recommended by HBCSE for each discipline.
Where can I find official updates for Indian National Olympiad 2027?
All official updates including registration links, exam dates, syllabi, and results will be published on hbcse.tifr.res.in. Students should check this site regularly and avoid relying on third-party sources for confirmed information.