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Biology Olympiad coaching for Delhi (Delhi NCR). NSEB → INBO → OCSC → IBO pathway. AIIMS-trained faculty, Campbell + Alberts depth. Online live cohort plus in-person support at our South Extension, Rohini, Green Park, Gurugram and Faridabad centres.
WhatsApp +91 88264-44334The Indian Biology Olympiad pathway starts with NSEB (22 November 2026; enrol on iapt.manageexam.com by 14 September). About 300 national scorers qualify for INBO (theory-only, late January-early February). About 35 INBO students attend OCSC at HBCSE Mumbai. 4 students are selected for India's IBO team. Cerebrum coaches the full pathway with Campbell Biology (canonical), Alberts Molecular Biology of the Cell, and Lehninger Biochemistry.
Delhi is CBSE's heartland, which means Delhi students start with the exact NCERT foundation NSEB assumes — preparation time goes straight into Campbell-depth genetics, physiology and ecology. The capital's academically elite schools — DPS RK Puram, Modern School Barakhamba, Sanskriti, Vasant Valley, Mother's International, Sardar Patel Vidyalaya among them (no affiliation; we tutor students from each — see the school pages below) — send students into the national olympiads every year. Unlike every other city on this list, we also run physical centres here: South Extension, Rohini and Green Park, with Gurugram and Faridabad Sector 17 covering NCR. Delhi hosts many IAPT exam centres for the November paper.
Delhi's advantage is a strong NCERT base, and that is exactly what makes Part A comfortable — 48 single-correct questions at +3/−1, the format every CBSE student has drilled for years. The paper is not decided there. Part B is 12 multiple-correct questions at +6 with no negative marking, and it is all-or-nothing: full marks only if every correct option is marked and no incorrect one is. That places 72 of the 216 marks inside 12 questions. A student who has read only NCERT can usually eliminate two options and then has no basis to decide the remaining two, which is a coin-flip that pays nothing. Closing that gap is Campbell-depth work — knowing why an option is wrong, not just which one looks right — and it is the single largest difference between a Delhi student who clears MAS and one who does not.
Enrolment is on iapt.manageexam.com, 21 August – 14 September 2026, fee ₹300, for the 22 November 2026 paper — 120 minutes, 60 questions, 216 marks. Two things catch Delhi families out. First, most schools register their own students, so a student whose school does not administer NSEB often discovers it after the 14 September deadline has passed; direct registration through an IAPT-affiliated centre is possible and Delhi has many, but only inside the window. Second, the November paper lands in the middle of Class 12 pre-boards, which is why the students who do well here start in Class 10 or 11 rather than treating NSEB as a six-week sprint. Eligibility is class 12 or below on the qualifying date, within the iapt age and residency rules for the season, so starting early is allowed and, in our experience with Delhi cohorts, decisive.
About 300 scorers nationally are called to INBO, which is theory-only — the practical component does not begin until OCSC. INBO sits in late January to early February, so a Delhi student who clears NSEB has roughly two months between the two papers, running alongside boards. From INBO, about 35 students go to the Orientation cum Selection Camp at HBCSE in Mumbai over April–June, where theory and practical are both assessed and the team of 4 for the International Biology Olympiad is chosen on combined camp performance. There is no interview stage. Planning the Delhi calendar backwards from that is the point of joining a cohort rather than self-studying.