About INMO

The Indian National Mathematical Olympiad (INMO) is a highly esteemed mathematics competition held in India. It serves as the second stage of the selection process for the Indian team participating in the International Mathematical Olympiad (IMO). INMO is open to students who have excelled in the earlier rounds of the Mathematical Olympiad Program in India.

INMO features a written examination that assesses students’ problem-solving abilities, mathematical reasoning, and creativity. The exam consists of six challenging problems that require deep mathematical thinking and proof-writing skills. Students have four hours to solve these problems. Outstanding performance in INMO leads to an invitation to the International Mathematical Olympiad Training Camp (IMOTC), where selected students undergo intensive training and mentoring by experienced mathematicians. The IMOTC aims to enhance problem-solving skills and deepen mathematical knowledge.

The top-performing students at the IMOTC are then selected to represent India at the International Mathematical Olympiad. This prestigious international competition brings together talented students from various countries to tackle complex mathematical problems and foster cross-cultural collaboration.INMO serves as a platform for identifying and nurturing mathematical talent in India. It provides students with an opportunity to showcase their skills, learn from experts in the field, and potentially pursue further opportunities in mathematics.


  • Recognition and Prestige: INMO is a highly prestigious competition in the field of mathematics. Being selected for INMO and achieving success in the examination brings recognition and prestige to the students. It distinguishes them as talented mathematicians among their peers.

  • Skill Development: INMO challenges students with complex mathematical problems that require critical thinking, problem-solving skills, and creative reasoning. Participating in INMO and preparing for it enhances students’ mathematical abilities and sharpens their problem-solving techniques.

  • Mentorship and Guidance: Students who qualify for INMO gain access to experienced mathematicians and mentors during the International Mathematical Olympiad Training Camp (IMOTC). This opportunity allows students to receive guidance, feedback, and expert advice to further enhance their mathematical knowledge and skills.

  • Exposure to International Level Competition: INMO acts as a stepping stone towards the International Mathematical Olympiad (IMO). Students who perform exceptionally well in INMO have the chance to represent India at IMO, competing with talented students from around the world. It provides exposure to international standards and fosters cross-cultural learning.

  • College and Career Prospects: Participating in INMO and achieving notable results can significantly boost a student’s college and career prospects. It showcases their strong mathematical aptitude, problem-solving skills, and dedication to the subject, making them stand out in college admissions and scholarship applications.


To be eligible for the Indian National Mathematical Olympiad (INMO), students need to qualify through the earlier rounds of the Mathematical Olympiad Program in India. Here are the general eligibility criteria:

  • Regional Mathematics Olympiad (RMO): Students must first qualify through the Regional Mathematics Olympiad, which is conducted at the regional level across different states and regions in India. The RMO is usually held in November or December.

  • Indian National Mathematics Olympiad (INMO) Qualification: Students who perform exceptionally well in the RMO are eligible to appear for the INMO. The exact criteria for qualifying may vary depending on the performance and selection process set by the conducting authorities.


The syllabus for the INMO exam includes topics from the pre-degree college mathematics course, with an emphasis on the mathematics syllabus from Class XI to Class XII. The topics covered in the syllabus are as follows:

  • Geometry
  • Quadratic Equations & Expressions
  • Trigonometry
  • Permutations & Combinations
  • Probability Theory
  • Arithmetic of Integers
  • Number Theory
  • Coordinate Geometry
  • Inequalities
  • Elementary Graph Theory
  • Finite Series & Complex Numbers
  • System of Linear Equations
  • Factorization of Polynomial
  • Elementary Combinatorics

Exam Pattern

The exam pattern for the Indian National Mathematical Olympiad (INMO) typically follows a specific structure. While there may be slight variations from year to year, here is a general overview of the exam pattern for INMO:

  • Offline Examination: INMO is conducted in an offline mode, where participants are required to physically appear for the examination at the designated examination center.
  • Duration: The duration of the INMO exam is typically four hours. Participants have the allotted time to solve the given mathematical problems.
  • Problem-based Format: INMO consists of several challenging mathematical problems that assess participants’ problem-solving abilities, mathematical reasoning, and creativity. The problems are designed to test participants’ deep understanding of mathematical concepts and their ability to apply them in solving complex problems.
  • Answer Explanation Requirement: In INMO, not only the correct answer but also a detailed explanation or proof of the solution is required. Answers without proper explanation or justification may not be accepted.
  • Syllabus Coverage: The questions in INMO generally cover topics from the pre-degree college mathematics course, with an emphasis on the mathematics syllabus from Class XI to Class XII. The questions are often more difficult and require advanced problem-solving skills compared to traditional mathematics examinations.

Scoring and Selection: The participants’ performance in the INMO examination is evaluated based on their problem-solving skills and the quality of their solutions. The top performers are then selected for further stages, such as the International Mathematical Olympiad Training Camp (IMOTC).

Results & Rankings

The conducting authorities officially announce the results of the INMO through their official website or through official communications to the participants, schools, and regional coordinators. The results are typically made available once the evaluation and ranking process has been completed.