Indian National Mathematical Olympiad (INMO)

Quick Fact: INMO is the second stage in the IMO (International Mathematics Olympiad). If you clear this stage you will be eligible for IMO training camp at the HBCSE (Homi Bhabha Centre for Science Education). 

The road to the International Mathematics Olympiad includes 5 Stages


Stage 1: Indian Olympiad Qualifier in Mathematics (IOQM)

Stage 2: Indian National Mathematical Olympiad (INMO)

Stage 3: IMO Training Camp

Stage 4: IMO Pre-Departure Camp

Stage 5: International Mathematics Olympiad (IMO)


The INMO is the second stage in this programme. Let us see what is the eligibility criteria for INMO 2022-2023 and how students can participate in this olympiad. 


For the 2022-2023 Cycle, the selection for IMOTC (International Mathematics Olympiad Training Camp) will be accomplished in two stages!

Stage 1 

Indian Olympiad Qualifier in Mathematics (IOQM)

  • Date: October 30, 2022
  • Duration: 3 hours
  • Total marks: 100
  • The answer to each question is an integer in the range 00-99. 
  • No negative marking. 
  • OMR-based exam.
  • Composition of the paper: 10 questions of 2 marks each; 12 questions of 5 marks each; 2 questions of 10 marks each.

Stage 2

Indian National Mathematical Olympiad (INMO)

  • Date: January 15, 2023
  • Duration: 4 hours
  • Number of questions: 06
  • Each question requires writing detailed proof


Eligibility Criteria for Qualification from IOQM to INMO

  1. The list of students qualified for the INMO 2023 will be prepared according to the following rule: 
    1. The top 600 in the IOQM merit list will qualify for INMO regardless of the regional quota. In this pool 
      1. the number of class XII students will be 100. 
      2. the number of class VIII, IX, X, XI students will be 500. 
    2. From each region (including KV and JNV), a minimum of 
      1. 25 students (class XI or below category) 
      2. 5 students (class XII category) 
      3. 3 girl students from class XI or below category irrespective of the number of girl students qualifying in 1.(b).i. Above will qualify for INMO regardless of the scores provided each qualifying candidate has a score above a minimum cut-off score of 30% of the total marks of the IOQM paper.
    3. No girl student of class XII will be selected under the girls’ quota. A girl student of class XII can qualify for INMO from IOQM if, and only if, she is selected among the top 100 students in the class XII category mentioned in 1(a)i. 


  1. A maximum of 6 students (provided each qualifying candidate has a score above a minimum cut-off score of 30% of the total marks of the IOQM paper.) will be selected from the category of students residing abroad and studying in an Indian school system different from Kendriya Vidyalaya (KV). Among these 6 students, no more than 1 student will be from the class XII category and no more than 5 students will be from the class XI or below category. There is no separate girls’ quota for this category of students.


Indian National Mathematical Olympiad (INMO) Syllabus 


The syllabus for Mathematical Olympiad (regional, national and international) is pre-degree college mathematics. The areas covered are 

  • arithmetic of integers, 
  • geometry, 
  • quadratic equations and expressions,
  • trigonometry, 
  • coordinate geometry, 
  • the system of linear equations, 
  • permutations and combination, 
  • factorization of polynomials,
  • inequalities, 
  • elementary combinatorics, 
  • probability theory and number theory, 
  • finite series, 
  • complex numbers, and 
  • elementary graph theory. 


The syllabus does not include calculus and statistics. The major areas from which problems are given are algebra, combinatorics, geometry, and number theory. The syllabus is in a sense spread over Class XI to Class XII levels, but the problems under each topic involve a high level of difficulty and sophistication. The difficulty level increases from Stage 1 to Stage 2 to Stage 3. 


Prepare for the Indian National Mathematical Olympiad (INMO) with askIITians

The registrations for the Indian National Mathematical Olympiad (INMO) have not started yet but you can start your preparations as soon as possible to secure the best results in this olympiad. This olympiad will give you a lot of exposure and learning opportunities beyond the four walls of your classroom. You will be able to explore how students pursue Mathematics and enjoy studying it. At askIITians, our whole team is here to help you out. 

  • Prepare for INMO as per the latest exam pattern. 
  • Get previous year's papers for INMO. 
  • Study from Maths experts from IITs and NITs in live classes. 
  • Get separate doubt sessions and mock tests to practice well for the olympiad. 
  • Access special books focusing on the olympiad syllabus and exam pattern. 


Frequently Asked Questions 

  • What is the exam pattern of INMO? 

INMO is a four-hour long test that includes 6 questions. You have to solve the questions on paper, include explanations, and proper reasoning. 


  • Are INMO and IMO the same? 

No, INMO is a stage before IMO. INMO is the Indian National Mathematical Olympiad. IMO is the International Mathematics Olympiad. You have to qualify the INMO and the training camp at HBCSE and then you will be eligible for IMO. 


  • How many students qualify for INMO?

Every year almost 900 students are selected all across India to participate in INMO. Out of these 900 only 35 students are selected for the training camp. 


  • What is done at the training camp for IMO at HBCSE? 

Students are trained for the International Mathematics Olympiad. Emphasis is laid on developing conceptual foundations and problem-solving skills. Several selection tests are held during this camp. On the basis of performance in these tests, six students are selected to represent India at the IMO. Resource persons from different institutions across the country are invited to the training camps.


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