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INBO 2026 - Dates, Syllabus, Eligibility, Preparation

The Indian National Biology Olympiad (INBO) is the national-level biology olympiad examination used to select students for advanced training and for representing India in the International Biology Olympiad (IBO). It is conducted by HBCSE (TIFR) as part of the Olympiad programme in the country. INBO tests conceptual understanding, biological reasoning, and problem-solving abilities beyond routine school exams. Qualified students are invited to orientation and selection camps that lead to the fina

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Indian National Biology Olympiad (INBO)

Conducted by: Homi Bhabha Centre for Science Education (HBCSE), Tata Institute of Fundamental Research (TIFR)

Biology
Admissionbuddy Team
Admissionbuddy Team

Content Writer | Updated 21 hours ago

Key Summary

•INBO is a national biology olympiad exam by HBCSE (TIFR) that serves as a key step toward selection for the International Biology Olympiad (IBO).

INBO (Indian National Biology Olympiad) is India’s premier national-level biology olympiad exam conducted by HBCSE (TIFR) for selecting students for the International Biology Olympiad pathway. The exam evaluates deep conceptual understanding and biological problem-solving beyond the school curriculum level.
The Indian National Biology Olympiad (INBO) is the national-level biology olympiad examination used to select students for advanced training and for representing India in the International Biology Olympiad (IBO). It is conducted by HBCSE (TIFR) as part of the Olympiad programme in the country. INBO tests conceptual understanding, biological reasoning, and problem-solving abilities beyond routine school exams. Qualified students are invited to orientation and selection camps that lead to the final Indian team for IBO.

INBO Paper Pattern

exam Mode

Offline Based Test

exam Duration

Approximately 2–3 hours (varies by year; confirm in the official notification for that session).

exam Level

UG

eligibility

Indian students studying in Class 11 or Class 12 (or equivalent) who qualify through the preceding stage(s) of the biology olympiad programme as notified for that year. Typically, candidates progress via the National Standard Examination in Biology (NSEB) conducted by IAPT (or the prevailing first-stage mechanism as announced) to become eligible for INBO. Students must satisfy citizenship/academic criteria specified in the official year-wise INBO notification.

official Website

https://www.hbcse.tifr.res.in/

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