INBO Exam Date 2026 has been officially announced, confirming that the national-level biology exam will be held on 1 February 2026, from 13:30 to 15:30 hrs. As part of the Olympiad cycle, NSEB was conducted earlier on 23 November 2025 across multiple centres.
The Indian National Biology Olympiad is conducted by the Homi Bhabha Centre for Science Education (HBCSE) for advanced stages, while Stage one (NSEB) is held by the Indian Association of Physics Teachers (IAPT). The Olympiad is designed for senior secondary students interested in advanced biology and future scientific research.
INBO Exam Date 2026 Overview
This examination marks the second stage of the Biology Olympiad Programme for the 2025–26 session. It follows the selection process that begins with NSEB and continues toward the Orientation-Cum-Selection Camp.
Below is a clear overview of the exam cycle:
INBO Exam Date 2026 Overview
Particulars | Details |
Exam Conducting Body | IAPT (Stage one), HBCSE-TIFR (Stages two and three) |
Session/Term | 2025–26 |
Official Notification | To be released |
Exam Dates | NSEB: 23 Nov 2025; INBO: 1 Feb 2026; OCSC-Biology: Apr–May 2026 |
Official Schedule | iapt.org.in |
INBO Exam Date 2026: Important Deadlines
Candidates appearing for the Biology Olympiad must follow the official timeline. The enrolment and exam schedule ensures smooth participation at every stage of the selection process.
INBO Exam Date 2026: Important Dates
Event | Date |
Notification Released | To be released |
Registration Start | 21 Aug 2025 |
Last Date (Without Late Fee) | 14 Sept 2025 |
Last Date (With Late Fee) | To be released |
Admit Card Release | To be released |
Exam Dates | NSEB: 23 Nov 2025; INBO: 1 Feb 2026 |
Result Announcement | To be released |
INBO Exam Schedule 2026
The Olympiad assessment begins with NSEB and continues with the national-level INBO. Students must note the duration and start times to avoid any delay on the exam day.
INBO Exam Date 2026: Exam Schedule
Paper/Session | Date | Timings | Duration |
NSEB (Stage one) | 23 Nov 2025 | 2:30 PM – 4:30 PM IST | 2 hours |
INBO (Stage two) | 1 Feb 2026 | 1:30 PM – 3:30 PM IST | 2 hours |
INBO Admit Card 2026 Release Information
The INBO admit card is a mandatory document for the national-stage exam. The card will be released soon on the official portal, and candidates must download it once available. It will include the exam centre, reporting time and verification instructions.
FollowKollegeApply for the latest updates on College Admissions, Courses, Exam Dates, Results, Scholarships, Career Guidance, Education News, and Policy Changes — everything needed to stay ahead in the education journey.
