Indian National Mathematical Olympiad

The Indian National Mathematical Olympiad (INMO) is a highly selective high school mathematics competition held annually in India. It is conducted by the Homi Bhabha Centre for Science Education (HBCSE) under the aegis of the National Board for Higher Mathematics (NBHM).[1][2]

The Mathematical Olympiad Program (MOP) comprises a five-stage process overseen by the National Board for Higher Mathematics (NBHM). The initial stage, the Indian Olympiad Qualifier in Mathematics (IOQM), is organized by the Mathematics Teachers’ Association (MTA). Subsequent stages are conducted by the Homi Bhabha Centre for Science Education (HBCSE).[3]

Eligibility and participant selection process

In order to be eligible to take the INMO, a participant must be either an Indian citizen or an Overseas Citizen of India. Only Indian citizens may join the Indian IMO team. In addition, all participants, regardless, must meet qualification indices determined by previous rounds.

Structure & Pattern of the IOQM

The Indian Olympiad Qualifier in Mathematics is a thirty-question integer-type examination of 3 hours duration. It is usually held on the first Sunday of September. It is equivalent of the AIME conducted in the United States. Top 10% performers of IOQM are awarded merit certificates every year.[4]

Structure & Pattern of the INMO

It is a six-question proof-based examination of 4.5 hours duration. It is usually held on the third Sunday of January. It is similar to the USAMO conducted in the United States. Top 48 (Classes 8 to 11) performers of INMO are felicitated as INMO Awardees every year.[4]

Eligibility via Regional Mathematical Olympiad (RMO)[5] The RMO is a proof-based examination consisting of six problems to be solved in three hours and is generally held in October or November. Students who qualify through the Indian Olympiad Qualifier in Mathematics (IOQM) are eligible to appear for the Regional Mathematical Olympiad (RMO). Qualification is determined separately for each region, with approximately 200 students from Classes 8–11 qualifying from each region irrespective of the region's population or number of participants. Consequently, qualifying scores vary substantially between regions. The RMO is a proof-based examination consisting of six problems to be solved in three hours and is generally held in October or November. Advancement from the RMO to the Indian National Mathematical Olympiad (INMO) is also determined on a regional basis, with approximately 30 students from each region qualifying for the INMO each year. As a result, cutoff scores for both the IOQM–RMO and RMO–INMO stages differ considerably across regions. Consequently, regional cutoff scores vary substantially; for example, in the 2024 RMO to INMO selection process, Category A cutoffs ranged from 1/102 in Sikkim to 51/102 in Delhi.[4][6]

Further training

International Mathematical Olympiad Training Camp (IMOTC)

INMO Awardees attend a four-week IMOTC in May. First-timers start in early May, while returning participants join a week later. Four selection tests and two practice tests are held, and the top six qualify for the IMO team.

International Mathematical Olympiad (IMO)

The selected six-member team attends a two-week Pre-departure Camp (PDC) before the IMO in July. Accompanied by a leader, deputy leader, and observer, the team represents India. Ministry of Education funds travel, and NBHM covers other expenses.

Premier undergrad programs for INMO Awardees

India at the International Mathematical Olympiad

  1. Team India had its best performance (World #4) at the IMO in 2024.[15]
  2. Pranjal Srivastava is the most decorated Indian (World #19) at the IMO Hall of Fame.[16]

See also

References

  1. ↑ "Homi Bhabha Centre for Science Education, TIFR". Homi Bhabha Centre for Science Education (HBCSE).
  2. ↑ "Webpage of the Indian MO Process". Archived from the original on 2013-05-27. Retrieved 23 March 2013.
  3. ↑ "Olympiads HOMI BHABHA CENTRE FOR SCIENCE EDUCATION". Olympiads HOMI BHABHA CENTRE FOR SCIENCE EDUCATION.
  4. 1 2 3 "Mathematical Olympiad 2023-2024". Olympiads. Retrieved 2023-09-22.
  5. ↑ "RMO Region Codes (2025 onwards) – MTA (I)". www.mtai.org.in. Archived from the original on 2026-02-09. Retrieved 2026-05-31.
  6. ↑ "RMO 2024 results". Olympiads. Retrieved 2026-05-31.
  7. ↑ "MSN". www.msn.com. Retrieved 2025-09-14.
  8. ↑ "IIT Kanpur Admissions through Olympiad: All 5 students admitted through Olympiad chose CSE". The Indian Express. 2025-09-14. Retrieved 2025-09-14.
  9. ↑ Desk, India Today Education (2025-03-11). "Olympiad achievers can get admission to IIT Madras without appearing for JEE". India Today. Retrieved 2025-09-14.
  10. ↑ Chauhan, Rishabh (2025-09-10). "Is the Olympiad route to IITs creating a new meritocracy beyond the JEE?". India Today. Retrieved 2025-09-14.
  11. ↑ "Chennai Mathematical Institute Admissions". Chennai Mathematical Institute.
  12. ↑ "Direct Admission to BS Courses". Chennai Mathematical Institute.
  13. ↑ "Integrated M.Tech". www.iiitb.ac.in. Retrieved 2026-05-31.
  14. ↑ "Olympiad Admissions - 2026". Ug Admissions. Retrieved 2026-05-31.
  15. ↑ "Maths champs bag 4 Olympiad golds". The Times of India. 2024-07-22. ISSN 0971-8257. Retrieved 2025-09-14.
  16. ↑ "Pranjal Srivastava is the first Indian to win 3 gold medals at International Mathematical Olympiad". The Indian Express. 2023-01-15. Retrieved 2025-09-14.
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