Dr. Shekhar C. Singh — AIIMS New Delhi alumnus, founder of Cerebrum (2014), 15+ years of biology-specialist tutoring. 1:1 Solo tier for the most demanding cases (OCSC, USABO Finals, IBO). Pinnacle ZA Micro-Batch (6-12 students, direct Dr. Shekhar weekly review) for 95% of tutor-seeking families. Across NEET, IB, AP, MCAT, USMLE Step 1, and every biology olympiad — same personalisation layer.
1 student
Fully dedicated tutor. Used by OCSC candidates, USABO Finals aspirants, IBO team aspirants, and families wanting the maximum personalisation. Reserved tier; limited slots per year.
Best for
IBO / OCSC track, USABO Finals, USMLE Step 1 prep
6-12 students
Tutor-like at small scale. Direct Dr. Shekhar weekly review, customised topic plans, weekly per-student progress check, monthly 1:1 mentor call. The product 95% of tutor-seeking families pick.
Best for
NEET 360/360 biology aspirants, IB HL 7-target students, INBO Stage 2
12-16 students
Senior faculty trained by Dr. Shekhar. Strong personalisation but less than Pinnacle. Best fit for families wanting tutor-style depth at a more accessible tier.
Best for
NEET 340+/360 biology, AP score-5, NSEB qualification
At Allen, Aakash, or PW your child sees rotating biology faculty across the year. Each teacher knows only the slice of curriculum they teach. Nobody has the full picture of your child\’s specific reasoning gaps, learning trajectory, or target. That architectural limitation is why mass-coaching biology scores plateau at 280-300 for so many students.
A named mentor solves this. Dr. Shekhar (or one of our senior tutors) follows your child across the full prep year — knows their first attempt, their reasoning failure modes, the topics they accelerated on, the topics they keep losing marks on. Each week\’s teaching is calibrated to that specific history. That feedback loop is the entire mechanism behind tutor-led outcomes.
Tutor watches attempts live and identifies exact reasoning failure modes — not just "this is wrong" but "this conflates depolarisation with hyperpolarisation directions".
No two students follow identical curriculum cadence. Topic depth allocation varies by individual.
Weekly tutor sessions create accountability. You complete the Campbell chapter because the tutor will ask about it.
Olympiad / NEET prep is a 1-2 year arc. Named mentor across that timeframe means deep familiarity with strengths + gaps.
A tutor knows your child specifically — their reasoning gaps, learning style, target college, time-zone constraints. A coaching center runs a curriculum at scale. Cerebrum delivers the tutor experience even in the small-batch tiers because Dr. Shekhar personally reviews curriculum and assessment for every batch, and the small batch size makes per-student depth possible.
Three reasons. (1) AIIMS New Delhi alumnus — credibility in the highest-tier medical education context in India. (2) 15+ years exclusively teaching biology — no PCM faculty rotation, no general-track distractions. (3) Track record: 680+ medical college selections among his cohorts, 67+ to AIIMS Delhi specifically, multiple students with 100 percentile in NEET biology, multiple INBO/USABO/BBO/CBO qualifiers, IB HL 7/7 outcomes, AP score-5 outcomes. Same tutor across 12 years, same depth, same outcomes.
Yes — the 1:1 Solo tier exists. Reserved for specific high-intensity cases: OCSC residential-camp aspirants, USABO National Finals candidates, IBO team aspirants, USMLE Step 1 candidates who need fully customised pacing. Limited slots (max ~8 per year for 1:1 Solo). For 95% of families, the Pinnacle ZA Micro-Batch (6-12 students with direct Dr. Shekhar weekly review) delivers tutor-like depth without the 1:1 cost.
Same seven verticals as Cerebrum's coaching offering: NEET-UG Biology (Class 11 / 12 / dropper), IB Biology HL & SL, AP Biology, MCAT Biology + Biochemistry, USMLE Step 1 Biology, Biology Olympiads (NSEB/INBO/IBO/USABO/BBO/CBO/SBO), CBSE/ICSE Class 11-12 Biology. The tutor delivery is the personalisation layer; the curriculum spans all seven.
Often yes for IB HL students because IB IA (Internal Assessment) and EE (Extended Essay) are inherently individual projects that need named-mentor supervision. A tutor relationship is structurally better for IB than a classroom coaching format. We have current IB HL students globally on the Pinnacle ZA Micro-Batch tier specifically for this reason.
Yes — Cerebrum tutors students globally via Zoom. Time-zone-matched slots for Gulf, India, Southeast Asia, UK, US East/West, Canada, Australia. Active NRI cohorts in 30+ countries. Printed study material shipped to your address.
We don't publish prices because they depend on tier (1:1 Solo, Pinnacle ZA Micro-Batch, Ascent Pro Batch), programme (NEET vs IB vs MCAT vs Olympiad), currency (INR / USD / AED / GBP / CAD / SAR), and any sibling discount. Send a WhatsApp with your child's class + programme + country — we share the tier matrix and quote in conversation. Free trial class with Dr. Shekhar comes first.
Free 60-minute trial with Dr. Shekhar. Bring one biology question your child has struggled with. We work through it live and you see the tutor-style depth before committing.
60 minutes, live, with the founder. Bring one biology question your child has struggled with. You see the tutor-style depth before committing.