INAO Exam - Indian National Astronomy Olympiad (INAO)


INAO Exam- Registration, Exam Date, Syllabus, Exam Pattern, Result and Other Details

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Due to Covid 19 - The usual three-stage procedure for the selection of the teams to represent India at the International Olympiad that has been followed in prior years is now being shortened to a two-stage procedure as a one-time exception only for the academic year 2020 - 21. Read more about IOQ 2020-21.

After qualifying the National Standard Examination in Astronomy (NSEA) candidates can appear in Indian National Astronomy Olympiad Exam 2020 Which is conducted by the HBCSE (Homi Bhabha Centre For Science Education). This exam is usually conducted at the end of November. It is the second stage and only those candidates will appear in the exam who clear the stage one NSEA examination of Astronomy.

INAO Exam 2020

The Astronomy Olympiad Program Undergoes the Following 5 Stages:

Stage 1: National Standard Examination in Astronomy (NSEA).

Stage 2: Indian National Astronomy Olympiad (INAO),

Stage 3: Orientation cum Selection Camp in astronomy(OCSC),

Stage 4: Pre-departure Training Camp (PDT) for IOAA,

Stage 5: International Olympiad in Astronomy and  Astrophysics (IOAA).

The candidates are eligible for INO ‘s Astronomy Examination (INAO) after qualifying the National Standard Examination in Astronomy (NSEA).

There is no such date has been announced yet but exam of the INO 2021 will commence from the month of Feb. the estimated dates are as follows:

INAO 2021 Exam Dates


Expected Dates

Last date to register for INO exam

January 2nd week

INO exams

February 1st Week

Solutions to INO question papers

Few days after the exam

Last date to receive comments on the solutions

February 2nd Week

Frozen solutions and INO scores

February 3rd Week

Last date to receive the requests for re-evaluation

February 4th Week

Final scores, certificates, and OCSC lists

March 1st week

Steps For Enrollment in INAO Olympiad Exam 2020

The candidate will be eligible for the next stage only after they will clear the first stage in the National Olympiad Program. The steps for enrollment in INAO exam are given below.

  • Go to the official site of HBCSE

  • Search the Olympiad option which is at the top of the desktop

  • Click on the link to the upcoming events.

  • Enter the NSE center code, roll number, DOB in the respected fields to enroll in INO.

  • The examination center must be chosen at the time of registration.

Enrollment Fee

To participate in the INAO Olympiad exam 2020 candidates need to submit the fees. The amount will be Rs. 150/- per student per subject at the center in-charge of the NSE registration center.

INAO Admit Card

Before going to the exam, candidates need to download the examination admit card. The admit card of the INAO Olympiad exam 2020 has been released online before the exam is scheduled. The admit card of INAO exam is available online a few weeks before the exam is scheduled. Candidates are able to download it from the official sites.

Eligibility Criteria for INAO

The eligibility criteria for the Astronomy Olympiad of INAO are as follows:

  • All Indian students who are born between 1st July 2001 and June 30, 2006, both days inclusive and in addition, are in Class XII or lower are eligible to appear for INAO 2020 – 2021 examination. Those students who are Class XII pass out are not eligible to enroll for INAO.

  • He must be residing and studying in the Indian school system since November 30, 2018, or earlier.

  • Must not have planning to commence studies in universities or equivalent institution by June 1, 2021

  • Must not have passed class XII  board examination or equivalent earlier than November 30, 2020

  • Must not appear in NSEJS 2020.

  • Candidates must be eligible to hold an Indian passport. As per the High Court order of Madras, the OCI candidates will not be eligible for the selection to the Indian team in the International Olympiads. But such candidates are eligible for selection to all the prior stages up to and including OCSC (stage III) providing that they fulfill all the other eligibility criteria.

Indian National Astronomy Olympiad Result

The result is published online. The students can access their INAO results on the HBCSE website. The candidates need to enter their roll number, username, and date of birth as a password in order to view the score. Candidates can also check the average of the top ten marks, MI, and MAS for each subject online.

FAQ (Frequently Asked Questions)

Q1. What is the Procedure For Selection In Astronomy Stage II (INAO 2020).


  • There will be the division of the students batch in two groups i.e. Group- A & Group - B.

  • Group A: Consists of students of class XII from November 30, 2019.

  • Group B: Consists of students of class XI or lower as of November 30,

  • The question paper of NSEA 2019 and INAO 2020 will be the same for both groups.

  • A total of 250 students will be selected from each group for stage II of INAO and therefore a total of 500 students will be selected.

  • Separately Merit Index (MI) and Minimum Admissible Score (MAS) are calculated for each group.

Q2. What is HBCSE Science Olympiad 2019-2020?

Answer: The science olympiad is a 5-stage selection process for shortlisting the Indian team for representation at the International Olympiads in Astronomy, Biology, Chemistry, Junior Science, and Physics.the very first stage is NSE (National Standard Examination), and the 2nd stage, is INO (Indian National Olympiad). The students who qualify stage 1 have to register online for the 2nd stage on the official HBCSE site. The selection procedure consists of the following 5 stages: NSE, INO, Orientation-cum-Selection camp (OCSC), pre-departure camp, and International Olympiad.