Indian National Mathematics Olympiad, know here dates, application and exam pattern

Homi Bhabha Centre for Science Education conducts Indian National Mathematics Olympiad (INMO) for students from Class 8th to Class 11th. The HBCSE Mathematics Olympiad has been started by National Board of Higher Mathematics (NBHM) for preparing students for International Mathematics Olympiad (IMO), which is conducted for various participating countries including United Kingdom, UAE, Turkey, South Africa, New Zealand and many more. Students can check here all about INMO as mentioned below including application process, stages of Mathematics Olympiad selection process for IMO as well as syllabus and books.

Key Features of Indian National Mathematics Olympiad (INMO)

Conducting By – Homi Bhabha Centre for Science Education (HBCSE)

Exam Level – There are four levels of INMO– Pre-Regional level, Regional level, National Level and then Training Camp level

Exam Type – Pen-Paper based test

Eligibility Criteria for INMO

  • Students studying in Class 8th to Class 11th
  • Students should not be more than 20 years at the time of registration

Key Dates for INMO


Key dates (tentative as per last year calendar)

Registration and application for PRMO

In June-July

Pre-regional Mathematics Olympiad

The third week of August

Regional Mathematics Olympiad for all regions

The second week of October

Result announcement by all regions

Before last week of November

Result announcement by HBCSE for all regions

By the First week of December

Indian National Mathematics Olympiad  

The third week of January

Result announcement for INMO

Last week of February 

International Mathematics Olympiad

In July

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Stages of International Maths Olympiad:

INMO is conducted at the national level to select students for International Mathematics Olympiad. The HBCSE conducts examinations for INMO at different levels as under –

Stage 1: Pre-Regional Mathematics Olympiad - Before appearing for RMO, every student has to participate in Pre-Regional Mathematics Olympiad at their regional centres. The application fee is Rs. 200 for all students other than KV students as the application fee for KV students is Rs. 100. Students who qualify in PRMO are eligible to participate in RMO. Check key features of PRMO –

Important Dates for PRMO


Important Dates

Centre registration

Third week of May to the Third week of June every year

Students’ registration at the centres

Third week of June to the Third week of July

Admit Card for PRMO


PRMO exam at regional centres

The third week of August

Exam Pattern for PRMO:

  • Conducted by – Indian Association of Physics Teachers (IAPT)
  • Exam Mode – Pen-Paper based test
  • Exam Level – Regional Level
  • Test medium – English and Hindi
  • Test duration – 4 hours
  • Type of questions – One or two digit number based questions
  • Total number of questions – 30 MCQs
  • Question Paper level – The question paper is different for all regions as it is set by the regional coordinators only

Stage 2: Regional Mathematical Olympiad – Students who appeared for PRMO can participate at a regional level with RMO. The RMO is held between September and First Sunday of December month for 25 regions as under –



North Zone

  • Delhi,
  • Uttar Pradesh
  • Uttarakhand
  • North Western States
  • Jammu
  • Kashmir

West Zone

  • Mumbai,
  • Maharashtra & Goa
  • Gujarat
  • Diu, Daman & Dadar and Nagar Haveli
  • Rajasthan

Central Zone

  • Madhya Pradesh
  • Chattisgarh
  • North Bihar & Patna
  • South Bihar (Bhagalpur)
  • Jharkhand

East Zone

  • West Bengal,
  • Orissa,
  • Assam,
  • Meghalaya,
  • Tripura

South Zone

  • Coastal AP & Rayalaseema
  • Telangana
  • Karnataka,
  • Kerala,
  • Tamilnadu

Other Centres

  • CBSE, New Delhi
  • Navodaya Vidyalaya Samiti, Noida, Delhi NCR,
  • Kendriya Vidyalaya Sangathan, Faridabad, Haryana

Exam pattern of Regional Mathematics Olympiad –

  • The RMO is conducted in the pen-paper mode for three hours duration.
  • There are six to seven problems in the question paper to be attempted by the exam appearing students.
  • The questions are of descriptive type only
  • The question paper is prepared by the regional coordinator for each region. However, each region can select the option of getting question paper from NBHM and the exam for the regions who select this option will be held on First Sunday of December every year. 
  • Students performing exceptionally well are shortlisted for next level i.e. INMO

Stage 3 – Indian National Mathematical Olympiad - The INMO is conducted on the First Sunday of February every year at various exam centres of different regions.

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Eligibility for INMO –

Students who appeared and qualified for RMO are eligible to participate in INMO

Exam Pattern of INMO –

  • Exam Mode – Pen-Paper based test
  • Exam Level –at National level at different regions
  • Test duration – 4 hours
  • Type of questions – Descriptive type
  • Question Paper level – The question paper is same for all regions, therefore, the level of difficulty is exceptionally high
  • Selection Process - The top 30-35 performers in INMO receive a certificate of merit

Stage 4– International Mathematical Olympiad Training Camp – Students who qualify in INMO and awarded with INMO certificate are sent invitations for 30 days training camp as a junior batch in May-June every year. Moreover, the students from the previous year INMO who have satisfactorily participated in postal tuition throughout the year are invited again for the second round of training as a senior batch

Stage 5– International Mathematical Olympiad – After the training camp, students are shortlisted and a team is formed of a "leader" and a "deputy leader who will represent India at the International Mathematics Olympiad.

Key features of IMO –

Exam Mode - IMO is a two-day event where the team from each country appear for two written tests. There is a gap of one day in each test.

Test Duration - The exam duration of IMO is 4 hours and 30 minutes for each test.

IMO event duration – The team needs to allot two-weeks for IMO including reaching the IMO venue and return back the country.

IMO Awards at National Level – Students representing India at IMO are awarded gold, silver and bronze medals as well as a cash prize of Rs. 5,000/-, Rs. 4,000/- and Rs. 3,000/- respectively at a formal ceremony in the following year of IMO.

Why are Olympiad Exams Important?

Syllabus for INMO:

The syllabus for Mathematics Olympiads (regional, national and international) is up to class 12th level only i.e. from class 9th to class 12th. However, the level of difficulty is higher and sophisticated as compared with school level. All the levels of Olympiad are mainly based on topics like number theory, geometry, algebra and combinatorics. However, the syllabus does not include calculus and statistics. The common topics for the Olympiads are –

  • Number Systems,
  • Arithmetic of Integers,
  • Geometry,
  • Quadratic Equations and Expressions,
  • Trigonometry,
  • Co-ordinate Geometry,
  • Systems of Linear Equations,
  • Permutations and Combinations,
  • Factorisation of Polynomials,
  • Inequalities,
  • Elementary Combinatorics,
  • Probability Theory,
  • Number Theory,
  • Infinite Series,
  • Complex Numbers and Elementary Graph Theory
How to Study for an Upcoming Exam to get the Best Result?

Reference Books for INMO:

  1. Mathematics Olympiad Primer, by V.Krishnamurthy, C.R.Pranesachar, K.N. Ranganathan and B.J. Venkatachala
  2. Challenge and Thrill of Pre-College Mathematics, by V.Krishnamurthy, C.R.Pranesachar, K.N.Ranganathan and B.J.Venkatachala
  3. An Excursion in Mathematics by M R Modak, S A Katre and V V Acharya and V M Sholapurkar
  4. Problem Solving Strategies by A Engel
  5. Functional Equations by B J Venkatachala
  6. Inequalities an approach through problems by B J Venkatachala
  7. Mathematical Circles by University Press

What are advantages of HBCSE INMO?

  • Students are shortlisted to participate in International Mathematics Olympiad and their talent in Mathematics gets acknowledged 
  • The top 30 students in merit from all over the country will be chosen as INMO awardees.
  • Besides INMO awardees, another 45 students who performed well in INMO and are studying in class11th and below (but could not qualify as INMO awardee) are presented with a certificate of merit. These students are eligible to appear in next year INMO directly and they do not need to appear for RMO 2018 again. However, they should not be studying in class 12th at the time of appearing in INMO.  
  • Moreover, five girl students besides 30 INMO awardees will be selected and trained for the next European Girls Mathematics Olympiad (EGMO) based on their performance in INMO and these students need not be a part of INMO shortlisted students.  
  • All the students who are awarded INMO merit including the girl student as mentioned above, as well as the senior batch students of IMO Training Camp, are eligible to appear for
  • All INMO awardees, the selected girl students as above and all the students designated as senior students of IMOTC 2018 will be eligible to write Asian Pacific Mathematics Olympiad.


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