Dhirubhai Ambani vs ABWA vs Oberoi International: How They Compare

Comparison table

# Dhirubhai Ambani vs ABWA vs Oberoi International: How They Compare

Mumbai · Comparison

Three names dominate most shortlists for international education in Mumbai. Dhirubhai Ambani International School (DAIS) in Bandra Kurla Complex, the American School of Bombay (ASB) across BKC and Kurla, and Oberoi International School (OIS) across Goregaon East and Jogeshwari Vikhroli Link Road. All three end with the IB Diploma. All three sit at the top of the city's fee table. They feel very different from the inside.

DAIS is an Indian-promoter school with ICSE in the early years and the strongest published Diploma results in the country. ASB is the American-style option, founded by US expatriate parents in 1981 and still the default choice for diplomatic and corporate relocations. Oberoi runs the IB continuum from PYP onward, with two campuses and a Diploma cohort that consistently outperforms the global average. Fees, community mix and admissions style matter more than the headline rankings.

At a glance

Dhirubhai Ambani International School opened in 2003 and is chaired by Nita Ambani under the Reliance Foundation. Roughly 2,800 students on a single BKC campus on Trident Road, ICSE plus IGCSE plus the IB Diploma, with ICSE ending after the March 2026 boards. CIS and NEASC accredited. The Class of 2025 placed ninth globally on the Diploma, the only Indian school in that bracket.

American School of Bombay opened in 1981 and serves around 1,300 students from more than 50 nationalities. Elementary sits at Kohinoor City in Kurla West, secondary at G Block in BKC. The school runs a US framework with the IB PYP in the early years and the IB Diploma in Grades 11 and 12. CIS-accredited. DP average for 2024 was 34 points, with a high score of 41 across 37 graduates.

Oberoi International School opened in 2008 at Oberoi Garden City in Goregaon East and added the Jogeshwari Vikhroli Link Road (JVLR) campus in 2017. About 2,906 students from 29 nationalities. Full IB continuum: PYP, MYP and DP. CIS and NEASC accredited on the OGC campus. Class of 2025 averaged 35.5 points on the Diploma against a global mean of 30.58, with USD 8.1 million in university scholarships reported across the cohort.

Curriculum

DAIS still carries the ICSE board path through to its final cohort sitting boards in March 2026, alongside IGCSE in Grade 10 and the IB Diploma in Grades 11 and 12. Until that point parents have a real choice between an Indian board route and an international one inside the same school. After 2026 the school becomes effectively IGCSE plus IB DP at senior level. The early years run on a structured ICSE-aligned programme rather than the IB PYP.

ASB is the only one of the three running an American-style curriculum from Pre-K through Grade 10, layered with the IB PYP in the early years. Senior students choose between an American high school diploma route and the IB Diploma, and the school's published outcomes lean on the Diploma cohort. The grade-by-grade structure, transcript format and counselling are recognisable to families moving in from international schools elsewhere.

Oberoi is the cleanest IB story of the three: PYP, MYP and DP end-to-end, with no parallel board path. For families certain they want the IB continuum and willing to commit a child to inquiry-based learning from age three, this is the most coherent option in the city. The school is also one of a small group of IB Preferred Partner schools in India.

Results

Published Diploma outcomes separate the three. DAIS sits at the top, with the 2025 cohort placed ninth globally for the IB DP and multi-year averages above 38 points. IGCSE results follow a similar pattern, and ICSE outcomes remain strong in its final cohorts.

Oberoi's 2025 DP cohort averaged 35.5 points, around five points above the global average. Scholarship totals for that cohort reached USD 8.1 million, an indicator of university offers rather than a measure of teaching quality. Multi-year averages have held in the mid-thirties.

ASB's most recent published DP average is 34 points for 2024, with 29 of 34 candidates earning the Diploma from 37 graduates and a high score of 41. Average subject grade was 5.34. The numbers reflect a smaller cohort and a curriculum that does not push every senior into the Diploma path, so ASB's outcomes sit alongside its US transcript record rather than as a like-for-like Diploma comparison.

Fees and what they include

Fees are quoted in INR and refresh annually. The bands below are drawn from the schools' own published tuition for the most recent year and round to the nearest lakh at the top end.

DAIS publishes the lowest entry-point fees of the three at around INR 1.7 lakh in the early years, climbing to roughly INR 10 lakh by the IB Diploma. The school carries non-refundable admission charges and a security deposit at entry, and tuition is fee-only at the published headline. The structure is closer to a high-end Indian private school than to an expatriate international school.

ASB sits at the top end. Tuition runs from around INR 17 lakh in the early years to over INR 31 lakh in the upper grades, plus a one-off capital levy charged at entry. The package is closer to international school pricing in Singapore or Hong Kong, and reflects the operating costs of two campuses, a heavy expatriate hire base, and extensive after-school programming.

Oberoi falls between the two. Diploma fees run around INR 8 to 9 lakh with PYP fees starting near INR 5.6 lakh. Capital charges and refundable deposits apply at entry. The school's fee profile reads as premium Indian-international rather than the global expatriate band ASB occupies.

Community and feel

DAIS has the most concentrated wealth profile of any school in Mumbai. The intake is predominantly Indian families with significant business or professional means, plus children of Reliance group families and a smaller international layer. Parents talk about academic rigour, world-class facilities and routes into elite global universities. The same parents talk about social pressure on children and on themselves. Anyone whose child does not fit the high-achieving, well-resourced default may find the school harder going than the rankings suggest.

ASB has the most diverse passport mix: roughly a quarter US passport holders, 10 to 15 percent Indian, and the balance third-country nationals. The community runs on diplomatic and corporate relocations, with rolling arrivals through the year. Families describe ASB as one of the best-run schools they have used, with strong teachers and deep extracurriculars. The Kurla elementary campus sits in some of Mumbai's worst traffic, and the pace is high enough that Indian families often add tutoring.

Oberoi sits between the two. Largely Indian intake with 29 nationalities represented, well-resourced families, but a smaller wealth concentration than DAIS. Parents praise the IB-trained faculty and the breadth of facilities. Some senior students push back, saying recent cohorts have not had the same teaching as earlier years and the academic pressure can be relentless.

Admissions

DAIS admissions are genuinely hard outside Reliance circles. The school screens academically at most entry points, interviews parents and child, and operates with very limited senior-year capacity. ICSE entry has historically been the easiest route in and is closing.

ASB takes rolling applications through the year, structured around diplomatic and corporate moves. Places open by grade as families leave, and the school is used to onboarding new arrivals mid-term. The bar at senior entry is competitive, particularly for the Diploma, but the admissions team is set up for international families on a short fuse.

Oberoi runs structured admissions with competitive entry at every grade, including age-appropriate assessment in the PYP and MYP. The application window opens months ahead of the September start, and an offer is contingent on assessment outcomes rather than waitlist seniority alone.

How to read the comparison

The right choice tracks the family's situation, not the table. If results are the single weighted variable and the family can carry the fees and the admissions process, DAIS has the strongest published Diploma outcomes in India. If the family is moving in on a corporate or diplomatic posting and values transcript portability, ASB is built around that profile. If the family wants IB end-to-end with no board path in parallel, Oberoi is the cleanest version of that proposition in Mumbai.

Fit is the harder question. DAIS suits academically able children who thrive in a high-pressure peer group with significant wealth concentration. ASB suits children comfortable with frequent friend turnover and a pace that rewards independent work. Oberoi suits children who take to inquiry-based learning early and can carry an IB workload through twelve years rather than two.

FAQs

Which school has the best IB Diploma results? DAIS's 2025 cohort was placed inside the global top ten and is the only Indian school in that bracket. Oberoi averaged 35.5 points against a global mean of 30.58. ASB's 2024 published average was 34 points across a smaller cohort.

Is DAIS open to families outside Reliance circles? Yes, the school admits on academic and interview screening at most entry points. The volume of places relative to demand makes entry genuinely competitive, and ICSE-route entry will end after the March 2026 boards.

How do fees compare across the three? DAIS publishes the lowest sticker fees at around INR 1.7 to 10 lakh by grade. Oberoi runs roughly INR 5.6 to 8.9 lakh. ASB runs roughly INR 17 to 31 lakh plus a capital levy, reflecting an expatriate fee structure.

Which school is best for a corporate relocation arriving mid-year? ASB is set up for rolling admissions and onboarding diplomatic and corporate moves. DAIS and Oberoi take applications on structured windows tied to the school year.

Does Oberoi offer any non-IB pathway? No. The school runs PYP, MYP and DP end-to-end across both campuses. Families wanting an Indian board path through senior school should look at DAIS while ICSE remains live, or at other Mumbai schools.

How big are the three schools? DAIS sits at about 2,800 students on one campus. Oberoi sits at 2,906 across two campuses. ASB is the smallest at roughly 1,300 students across two campuses.