Bombay International School vs Oberoi International School
🇮🇳 Mumbai · Side-by-side comparison on verifiable public data.
Neither Bombay International School nor Oberoi International School sits in a market with a public inspectorate, so both are assessed on verifiable accreditation, curriculum authorisation, and published data rather than an official quality rating.
Key Facts
| Bombay International School | Oberoi International School | |
|---|---|---|
| Curriculum | IB / British | IB |
| Ages | Lower Prep (approx. age 4) to Grade 12 (approx. age 18) | 3-18 (Nursery to Grade 12) |
| Languages of instruction | English | English |
| Annual fees | not public | Approx INR 5-12 lakh/year (indicative third-party estimate; school does not publish an official fee table) |
| Enrollment | — | 2,906 |
| Boarding | Day only | Day only |
| Accreditations | Cambridge International (Cambridge Assessment International Education), International Baccalaureate Organization (IB World School) | Council of International Schools (CIS), New England Association of Schools and Colleges (NEASC), International Baccalaureate Organization (IBO) |
Strengths
- ✓Unbroken international pathway from IB PYP through Cambridge IGCSE to the IB Diploma, removing curriculum-switch friction between phases.
- ✓Strong, transparently published IGCSE outcomes (Class of 2025: 81% of grades A* and A across 43 candidates).
- ✓Dual international accreditation — Cambridge International and IB World School (PYP and DP) — rather than a single board.
- ✓Deep heritage and a deliberately small scale ('the small school with a big heart'), founded 1962 with a progressive, anti-rote ethos.
- ✓Need-based financial aid and a dedicated university counselling and CAS provision for the senior years.
- ✓Full IB continuum (PYP, MYP, DP) authorized across the school, with OGC an IB World School since 2009
- ✓Strong DP outcomes: Class of 2025 average of 35.5 points versus a 30.58 global average
- ✓Dual accreditation by CIS and NEASC alongside IB authorization
- ✓Favourable staffing ratios: average class size of 18 and a 9:1 student-to-faculty ratio
- ✓Internationally diverse community of roughly 2,906 students across 29 nationalities
Trade-offs
- !Fees are not published online — families must contact admissions, reducing cost transparency.
- !No published enrollment figure, so overall school size cannot be verified.
- !Small cohort sizes (43 IGCSE candidates in 2025) mean limited subject breadth and peer-group scale versus larger international schools.
- !No external graded inspection rating exists in the Indian context, so quality must be inferred from accreditation and results.
- !No official published fee schedule, so families cannot verify costs from the school directly
- !No explicit official statement of the language of instruction (English is inferred from delivery and EAL provision)
- !Day-only with no boarding option, limiting access for non-Mumbai or overseas families
- !Curriculum history includes a Cambridge phase for middle grades, which can cause confusion about current provision
Best Fit For
- • Families committed to an IB-anchored education from the early years through to the Diploma.
- • Expatriate and globally mobile families wanting an internationally portable curriculum in central Mumbai.
- • Students who thrive in a small, pastorally attentive school community rather than a large campus.
- • Households seeking a progressive, inquiry-led alternative to India's national exam boards.
- • Families seeking a full IB-continuum pathway from early years through the Diploma
- • Academically ambitious students targeting strong DP scores and international universities
- • Internationally mobile or expatriate families wanting a CIS/NEASC-accredited Mumbai school
- • Mumbai-resident families able to commit to a day-school commute
University Placement
School-reported · not independently verified
School-reported, unverified: BIS publishes IBDP results-and-placements material and a university counselling programme, and reports IGCSE highlights such as 81% of Class of 2025 grades at A* and A; specific university destinations were not independently verified.
School-reported, unverified: the Class of 2025 is stated by the school to have secured around USD 8.1 million in university scholarship offers, with destinations across the UK, US and India.
More Comparisons
Frequently Asked Questions
Should I choose Bombay International School or Oberoi International School?
Bombay International School is best for: Families committed to an IB-anchored education from the early years through to the Diploma.. Oberoi International School is best for: Families seeking a full IB-continuum pathway from early years through the Diploma. The right choice depends on target curriculum, budget, and family priorities — the two are not linearly comparable.
How do fees compare between Bombay International School and Oberoi International School?
Bombay International School: not public. Oberoi International School: Approx INR 5-12 lakh/year (indicative third-party estimate; school does not publish an official fee table). Verify against each school's own published fees; some figures are sourced from third-party aggregators.
What curricula do Bombay International School and Oberoi International School offer?
Bombay International School: IB, British. Oberoi International School: IB.
Do Bombay International School or Oberoi International School offer boarding?
Bombay International School: day school only. Oberoi International School: day school only.
Questions parents ask
This comparison is BrightKey's independent assessment using verifiable public data only. University-placement figures are school-reported and not independently verified. BrightKey takes no payments from schools. Our method →