INMO 2025–26 — Classes 11–12
Pathway: IOQM → RMO → INMO → IMOTC → IMO | Coordinator: HBCSE–TIFR & NBHM
📅 INMO 2026 — Date & Time
- Sunday, 18 January 2026
- Time: 12:00 noon – 4:30 p.m. (4.5 hours)
🎯 Who can appear (Class 11–12 focus)
- Selected from RMO 2025: Students who qualify RMO 2025 (see quotas below).
- Direct INMO 2025 awardees: INMO 2025 awardees may appear directly for INMO 2026 (if other eligibility conditions are met).
⛳ RMO → INMO Qualification Quotas
- Category A (Classes 8–11): Top 30 per region (ties at 30th broken by IOQM score) + 5 additional girls per region.
- Category B (Class 12): Top 6 per region (ties at 6th broken by IOQM score). No separate girls’ quota in Cat‑B.
📝 INMO Pattern
- Format: Descriptive, proof‑based.
- Questions: 6 problems, each 17 marks → Max 102.
- Duration: 4.5 hours (12:00–16:30).
- Mode: Offline (pen & paper).
🏅 INMO Awardees & After INMO
- Awardees list: Top 48 from Classes 8–11 + Top 12 from Class 12 nationwide become INMO Awardees (tie‑break rules apply).
- Girls’ quota: Up to 5 additional girls (from Classes 8–11) may be added to the awardee list.
- IMOTC 2026: All INMO awardees are invited to a month‑long camp (Apr–May) at HBCSE/host institute. Selection tests at camp choose the Indian IMO team (6 students).
- Results: INMO 2026 results are expected in the last week of Feb / first week of Mar 2026.
🧭 What Class 11–12 students should do now
- Track your RMO 2025 status and regional communications.
- Review INMO past papers (proof‑based) and practice writing complete solutions with clear structure.
- Revise core areas: number theory, inequalities & algebraic identities, combinatorics (Pigeonhole/invariants), Euclidean & transformation geometry, functional equations.
- Simulate the 4.5‑hour setting; aim for full solutions on 2–3 problems and partials on others.
⚖️ OCI policy (current)
As per Delhi & Madras High Court orders: Students with OCI status are not eligible to represent India in IMO/EGMO. However, they are provisionally eligible for all prior stages (up to & including IMOTC/EGMOTC) and may write selection tests there, subject to other criteria.
🔗 Official Links
- HBCSE Maths Olympiad 2025–26: olympiads.hbcse.tifr.res.in
- Brochure PDF: Mathematical Olympiad 2025–26
📝 Disclaimer
All dates, quotas and policies above are summarized from the HBCSE 2025–26 brochure and website. If HBCSE/NBHM announces changes, those supersede earlier schedules. Always refer to the latest notices on the official site.