Trinity International School is a IGCSE school in Mumbai, India. Founded in 2003. Annual tuition ranges from $4,319 to $6,184 USD.
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Location & Getting There
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Key Details
Key facts
About
Trinity International School is a co-educational day school located in Sion (E), Mumbai, Maharashtra, India. It serves students aged 14 to 19 and offers the IGCSE curriculum.
School data verified by NanaSays. Last updated: April 2026.
Why Families Choose
TRIS combines a California Common Core-aligned American curriculum with a UC Berkeley GEMS partnership for Math and Science enrichment, Advanced Placement (AP) courses in upper grades, and values education rooted in Seventh-day Adventist principles. The school serves a diverse international community in Bangkok's Sukhumvit district and is accredited by both WASC and ONESQA.
Fees & Financials
| Grade / Year | Annual Fee |
|---|---|
| G1-G5 | THB 203,900~$ 5,586 |
| G6-G8 | THB 220,870~$ 6,051 |
| K1-K3 | THB 198,000~$ 5,425 |
| G9-G12 | THB 220,870~$ 6,051 |
Conversions to USD use exchange rates as of April 2026.
Original currency: THB 154,250 - 220,870. Application fee: $112.
Admissions Process
- 1Submit completed application form and pay non-refundable application fee (THB 4,000), along with a recent medical report, immunisation record, and most recent school report. 2. Applicants aged six or older take a placement test; low English scorers are required to join ESL. 3. Upon acceptance, pay one-time entry fees and annual fees. 4. Collect registration package with school calendar, timetable, request forms, handbook, and teacher contact details.
Admissions Details
The school operates an open admissions policy; students can enrol at any time during the school year if places are available. No publicly stated waitlist system.
School Day
The school day runs from 07:30 to 15:00. Student arrival is between 06:45 and 07:25. Students begin in homeroom with the national anthem, attendance, and announcements, followed by scheduled classes, breaks, and a lunch period.
Student Life
Uniforms are required; cost is THB 1,200–1,700 per set. Pathfinder and PE uniforms are also required.
Lunch and morning snack are provided at an annual cost of THB 15,550 (K1–K3) to THB 24,400 (G9–G12).
Student Demographics
Curriculum by Stage
| Stage | Curriculum | Notes |
|---|---|---|
| Primary (Grades 1-5) | American Diploma | — |
| Kindergarten (Ages 5-6) | American Diploma | — |
| High School (Grades 9-12) | American Diploma | International Program accredited by WASC; Thai curriculum accredited by ONESQA |
| Middle School (Grades 6-8) | American Diploma | — |
School Background
private
Seventh-day Adventist