INAO 2021 Exam Date

Datesheet for Indian National Astronomy Olympiad

The Indian National Astronomy Olympiad is the second level of the olympiad competition for the International Olympiad In Astronomy and Astrophysics (IOAA). It is conducted by Homi Bhabha Centre For Science Education along with the Indian Association of Physics Teachers (IAPT). Every year, HBCSE releases the INAO exam dates on their official website. Candidates need to clear the first round of the IOAA selection process i.e., NSEA to be eligible for INAO. In this article, we have provided all the necessary information based on INAO 2021 exam dates. Candidates are advised to refer to the official website to know about any latest updates on the INAO exam.

Important Dates for INAO 2021

Due to the ongoing pandemic situation in the country, HBCSE has not yet announced the INAO 2021 exam dates. It was announced that the three-stage selection process for the International Astronomy Olympiad will now be conducted only in two stages. 


NSEA and INAO examinations will be conducted on the same day as a single paper. This stage will be known as the Indian Olympiad Qualifier. The second stage will be the Orientation Cum Selection Camp in Astronomy.


Given below are the tentative dates for INAO 2021 exam as per the dates for INAO 2020 exam. Students must keep in mind that these dates are only for reference and they must follow the official website to know about any latest updates.

INAO Events/ Processes (Tentative)

INAO Exam Dates (Tentative)

Last date for INO Registration

January 2nd week

INO Exams 

February 1st Week

INO Question Papers Answer Keys

One to two days after the INAO 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

FAQs (Frequently Asked Questions)

1. How to check INAO Results Online?

Ans. Candidates can easily check the results for the INAO exams by visiting the official website of HBCSE. They need to open the link for the INAO exam and log in using their respective mail id and password. After logging in, select the result tab and enter the INAO exam roll number to view the results.

2. What are the Subjects included in the INAO Syllabus?

Ans. The syllabus for the INAO exam is similar to that of the National Standard Examination In Astronomy (NSEA) but the questions asked are slightly on a higher level. It covers topics from the subjects of Physics, Mathematics and Astronomy that are included in the CBSE textbooks. INAO questions are asked based on Class 10+2 level and mostly tests the higher-order thinking skills of the candidate. It is compulsory to clear the NSEA exam to be eligible for INAO. 

3. How can I Prepare for the INAO Exam 2021?

Ans. INAO is a national level competition and thus, has a high rate of competition. Candidates who clear all the stages of INAO are selected for the International Astronomy Olympiad. They can follow the below-given steps for INAO preparation:

  • Get a thorough understanding and concept of the INAO Syllabus and marking pattern.

  • Emphasize your weaker areas and try to improve them by regular practices.

  • Make a time table and try following it daily. 

  • Give equal time and importance to all the topics.

  • Practice several INAO Previous Year Question Papers and take up mock tests daily

4. Why Must Students Refer to Inao Previous Year Question Papers?

Ans. Referring to INAO Previous Year Papers will help the students to know about the marking pattern and the level of difficulty in the INAO exam. These INAO Past Papers thus will also help the students to make a note on the important topics that are being asked every year. Solving the previous year papers regularly boost the confidence and accuracy level of the students. It makes the students aware of their weaknesses before the final exam. 

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