Regional Mathematical Olympiad
RMO 2026 Exam: Date, Syllabus & Preparation
Your guide to the second stage of India’s Mathematical Olympiad pathway: qualification, exam format, proof-writing practice and official papers.
Schedule and format: official HBCSE announcement ↗
RMO full form: What is the RMO exam?
The Regional Mathematical Olympiad (RMO) is the stage after IOQM and before INMO. Students solve a small set of challenging mathematics problems and explain their reasoning in complete written proofs. Use this page to check the current exam information, choose practice papers and plan your preparation.
Start with IOQM-to-RMO qualification if you are checking entry requirements, or go straight to the RMO syllabus and previous papers if you are ready to practise.
Official 2026–27 cycle
RMO 2026 exam date and pattern
| Item | Official information |
|---|---|
| Date | 15 November 2026 |
| Time | 13:00–16:00 (1–4 pm) |
| Duration | 3 hours |
| Questions | 6 |
| Response style | Detailed proof for every question |
The official HBCSE cycle page is the authority for schedule changes, eligibility and later instructions. Do not use an older RMO page as the current notice.
Qualifying through IOQM
RMO 2026 eligibility and selection criteria
Scoring at least 10% in IOQM 2026 is the minimum threshold; qualification also depends on regional selection. Under the published rules:
- Category A: Classes 8–11. Each region selects the top 200 students, including ties at the last place.
- Category B: Class 12. Each region selects the top 40 students, including ties at the last place.
- Girls’ quota: Five additional Category A girls per region, with ties at the fifth place. Category B has no separate girls’ quota.
Overseas candidates are handled under the specific official rules. Check the 2026 qualification criteria PDF and the published selection list; a score estimate alone does not confirm qualification.
For the underlying age, class and other entry conditions, see the IOQM eligibility guide. The IOQM 2026 cutoff guide explains how first-stage cutoffs relate to RMO selection.
After qualification
RMO registration and hall ticket
The official MTA portal states that qualifying students must register again for RMO, with no payment involved. Follow the current HBCSE instructions for the registration window and hall-ticket process.
- Confirm your name and details in the official qualification information.
- Complete the required RMO registration according to the current notice.
- Read the hall ticket and exam instructions carefully for your centre, reporting time and permitted items.
MTA official portal and FAQs ↗ · Find your HBCSE regional coordinator ↗
IOQM rewards a correct two-digit answer; RMO evaluates the argument. For each problem, define objects clearly, justify every implication, treat boundary cases, explain constructions and finish with the exact claim required.
IOQM → RMO
RMO vs IOQM: How the exams differ
State the plan
Identify the lemma, construction, invariant, extremal choice or contradiction that will drive the proof.
Close every gap
Do not hide a non-obvious implication behind “clearly” or a diagram.
Conclude exactly
Return to the original claim and show that every case has been handled.
Four major domains
RMO exam syllabus: the four main areas
Number theory
Divisibility, congruences, Diophantine equations, valuations, primes and constructive integer arguments.
Algebra
Polynomials, inequalities, sequences, functional relationships and algebraic transformations with justified conditions.
Geometry
Triangles, circles, similarity, concurrency, transformations and careful auxiliary constructions.
Combinatorics
Counting, pigeonhole, invariants, colouring, extremal arguments and finite processes.
HBCSE states that major Olympiad areas are algebra, combinatorics, geometry and number theory, with difficulty increasing through RMO, INMO and IMO. Topic names alone do not define readiness; proof depth does. The examples above are preparation priorities, not a separate official chapter list. Read the HBCSE Mathematics Olympiad syllabus for the source framework.
Writing framework
How to write a complete RMO proof
- Restate: identify the givens and exact target.
- Explore: test small cases or draw a precise diagram on rough work.
- Choose: name the main idea and any supporting lemma.
- Write: connect claims in a logical order with reasons.
- Check: handle equality, zero, sign, degeneracy or other boundary cases.
- Conclude: state why the target now follows.
Definitions, theorem conditions and quantifiers matter. If equality occurs only in a special case, say so and verify it.
After IOQM
RMO preparation plan: eight to ten weeks
| Phase | Focus |
|---|---|
| Weeks 1–2 | Proof grammar, contradiction, induction, parity, congruence and clean geometry notation |
| Weeks 3–5 | Two domain-focused proof sets per week with mentor feedback |
| Weeks 6–7 | Mixed RMO problems; select and complete three rather than touching all six superficially |
| Weeks 8–9 | Full three-hour papers, reconstruction and gap analysis |
| Final week | Short proof review, recurring lemmas, calm paper strategy and logistics |
Adapt the sequence to the actual interval and the student’s IOQM diagnosis. Qualification should trigger immediate proof-writing practice, not a new collection of resources.
Official archive
RMO previous year question papers and solutions
| Year / paper | Question paper | Solutions |
|---|---|---|
| 2025 · Non-KV / Non-JNV | 2025 · Non-KV / Non-JNV paper PDF ↗ | 2025 · Non-KV / Non-JNV solutions PDF ↗ |
| 2025 · KV / JNV | 2025 · KV / JNV paper PDF ↗ | 2025 · KV / JNV solutions PDF ↗ |
| 2024 | 2024 problems with official solutions PDF ↗ | |
| 2023 · Non-KV / Non-JNV | 2023 · Non-KV / Non-JNV paper PDF ↗ | 2023 · Non-KV / Non-JNV solutions PDF ↗ |
Choose the matching paper and solution set. Other years and regional variants are available in the official archive. Older papers are for practice; follow the current notice for 2026 exam-day rules.
Use the official HBCSE paper and solution archive. Official solutions are models, not the only valid approaches.
- Attempt for a serious fixed period before reading a solution.
- Mark the furthest justified point reached.
- Compare the key idea, not just the final prose.
- Close the solution and rewrite it independently.
- Ask whether every theorem condition and case is visible.
Read before buying
RMO books and a free sample

RMO The Practice Book
By Ajeet Dubey · Mathiit
Yearwise papers and complete solutions for 2013–2019 and 2023–2025, with regional variants, 28 past papers and five supplementary mock papers. The collection contains 200 questions in total.
Open the free 15-page RMO flipbook sample to inspect the explanations and worked proofs before deciding whether the book suits your level.
This is a book by the author of this guide. It is a practice resource, and its inclusion does not imply HBCSE endorsement.
For topic practice and a broader reading list, explore the Olympiad books guide and free inequality chapter preview.
Three-hour decisions
Read all six, then invest where progress is real
- Use an opening scan to identify familiar structures and accessible subclaims.
- Start with a problem where you can build a complete argument.
- If an approach stalls, preserve useful lemmas and switch before one problem consumes the paper.
- Leave space and label continuations clearly.
- Reserve time to check logical transitions, not only arithmetic.
A complete proof on fewer problems is generally stronger than disconnected observations across many, but partial progress should still be written clearly when it is mathematically justified.
Common losses
Common mistakes in RMO proofs
Assuming the picture
A diagram suggests relationships but does not prove them.
Proving one direction
An “if and only if” statement requires both directions.
Dividing by zero
State why a denominator is nonzero or separate the case.
Checking examples only
Patterns guide discovery but do not prove all cases.
Citing an unnamed fact
State the theorem or prove the lemma needed.
Unreadable revision
Structure, notation and a clear final claim help the evaluator follow the proof.
Keep the stages separate
RMO cutoff, results and the next stage
The IOQM cutoff determines selection for RMO. RMO performance is then used for progression towards INMO under that cycle’s published rules. These are different selection stages, so an IOQM cutoff should not be treated as an RMO-to-INMO cutoff.
Use the HBCSE 2026–27 cycle page for official RMO result, selection and re-evaluation notices when issued. Check the INMO preparation guide for the next learning step.
RMO 2025 results and documents archive → Historical reference for the completed cycle.
Questions answered
RMO exam FAQs
What is the full form of RMO?
RMO stands for Regional Mathematical Olympiad. It is the stage after IOQM and before INMO in India’s Mathematical Olympiad pathway.
Does scoring 10% in IOQM guarantee RMO selection?
No. The 10% score is a minimum threshold. Regional ranks, category rules and the published selection list also determine qualification.
Do qualified students need to register again for RMO?
Yes. The official MTA portal says qualifying students must register for RMO and that no payment is involved. Follow the current HBCSE registration and hall-ticket instructions.
Can I preview the Mathiit RMO practice book for free?
Yes. The Books page includes a free 15-page sample of RMO The Practice Book by Ajeet Dubey, with introductory pages and worked RMO problems. Open its cover to use the flipbook or choose the sample PDF link.
When is RMO 2026?
The official HBCSE 2026–27 cycle page schedules RMO for 15 November 2026 from 13:00 to 16:00.
How many questions are in RMO 2026?
The official pattern has six problems in a three-hour examination.
Is RMO objective or descriptive?
RMO is descriptive. Each question requires a detailed proof.
How is RMO different from IOQM?
IOQM records numerical answers on OMR, while RMO evaluates complete written mathematical arguments.
What is the RMO syllabus?
Preparation centres on algebra, combinatorics, geometry and number theory, with deeper proof requirements than IOQM.
Where can I find RMO previous papers?
Use the official HBCSE past-papers archive, which includes RMO papers and available solutions.
How should I use official solutions?
Compare the key idea after a serious attempt, then close the solution and reconstruct a complete argument independently.
Can partial progress matter in RMO?
Write mathematically justified lemmas and steps clearly, but prioritise turning promising work into complete proofs.
Next step
Start writing proofs before the IOQM habits fade.
Use the official RMO archive, choose a small feedback-driven plan and practise communicating every non-obvious step.

MENTOR PERSPECTIVE
“Proof writing begins when a correct idea is expressed clearly enough for another person to verify.”Meet your IOQM mentor →