Calcutta International School

What Calcutta International School does

Calcutta International School (CIS) is a private K-12 international school located in Kolkata, India, founded in 1953 (originally as King's House School) and rebranded under its current name in 1970. The school serves approximately 700+ students from 17 nationalities across the full Pre-Nursery through Year 13 range, delivered through the Cambridge International pathway (IGCSE and A-Levels) and the International Baccalaureate Diploma Programme (IBDP). Operating from a single campus in Anandapur, Kolkata, CIS maintains a teacher-student ratio of approximately 1:8.

The school's revenue model is fee-based with a multilayered pricing structure. Quarterly tuition ranges from ₹45,000 (Pre-Nursery) to ₹1,50,667 (IB2), inclusive of mandatory technology, session, and event fees. Capital contributions include one-time admission fees of ₹1,50,000–₹3,50,000, development fees of ₹60,000–₹1,50,000, and a ₹2,00,000 refundable security deposit. Optional co-curricular activities are billed at approximately ₹2,000 per month. The school is governed by the parent-led CIS Society, with academic leadership under Head of School Mrs. Harsimran Kaur Kapany and Principal Junior School Mrs. Pratima Nayar.

CIS has accumulated several recognitions: #1 ranking in Kolkata/West Bengal and Top 20 in India by Education World, British Council International School Award (2025), 100% IB Diploma award rate for the Class of 2025, 82% A*/A grades at IGCSE, and 86% overseas university placement for the Class of 2026. As a Cambridge Direct Centre and authorized IB World School, the institution primarily serves affluent Kolkata-based and expatriate families seeking international curriculum credentials for global higher education placement.

Name

Calcutta International School

Legal name

Calcutta International School

Website

https://calcuttais.edu.in

Company type

Private

Founded year

1953

Operating status

Operating

Headcount range

101–250 employees

Short description

Calcutta International School is a private K-12 international school in Kolkata, India, serving 700+ students from 17 nationalities through the Cambridge and IB curricula, with tuition from ₹45,000 to ₹1,50,667 per quarter.

Ownership category

akta.pro rank

Product category

K-12 International Education

NAICS

Elementary and Secondary Schools (6111), Elementary and Secondary Schools (611110)

SIC

Services-Educational Services (8200)

akta.pro primary industry

International/Global Curriculum Schools (IB, Cambridge, etc.) (EDAJABAG)

akta.pro secondary industries

Preschool Programs within Private K–12 Schools (EDACABAM), International Curriculum Early Learning Academies (e.g., IB Early Years) (EDACADAK)

Keywords

• K-12 international education
• Private school education
• Cambridge Pathway programs
• IB Diploma Programme
• International curriculum schooling

Headquarters

HQ city

Kolkata, West Bengal

HQ country

India

HQ region

Asia

Offices1 record

Markets served

GTM type

B2C

Offering type

Services

Cost components

Personnel, Operations

Revenue model

1. Tuition Fees: Quarterly tuition fees charged across all grades from Pre-Nursery through IB2/A2 Level. Fees range from ₹45,000 per quarter (Pre-Nursery–Upper Nursery) to ₹1,50,667 per quarter (Class IB2) for the 2026-2027 academic session.
2. Admission and Development Fees: One-time non-refundable admission fees (₹3,50,000 for PN-X Indian/Foreign nationals, ₹1,50,000–₹1,75,000 for XI-XII) and development fees (₹1,50,000 for PN-X, ₹60,000 for XI-XII) charged at enrollment.
3. Security Deposit: Refundable security deposit of ₹2,00,000 charged at admission.
4. Co-Curricular Activity Fees: Monthly fees for extracurricular activities including Basketball (₹1,700/month), Cricket (₹1,800/month), Football (₹1,600/month), Guitar (₹2,200/month), Photography (₹2,700/month), Robotics (₹2,500/month), Table Tennis (₹1,700/month), Martial Arts (₹1,800/month), Vocals (₹1,600/month), Western Dance (₹2,700/month), Public Speaking (₹1,500/month), Drums (₹2,200/month), Quiz Club (₹2,000/month).

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels7 records

Core offering

Calcutta International School provides private K-12 education in Kolkata, serving students from pre-nursery through Grade 12. Its academic offerings include Cambridge Primary, Cambridge Lower Secondary, Cambridge IGCSE, Cambridge A Levels, and the IB Diploma Programme.

Product overview

Calcutta International School (CIS) is an international school in Kolkata offering a comprehensive educational programme through the Cambridge Pathway and International Baccalaureate. The school provides Cambridge Primary (Pre-Nursery to Grade 5), Cambridge Lower Secondary (Grades 6-8), Cambridge IGCSE (Grades 9-10), and two pre-university pathways: Cambridge A' Levels and IB Diploma Programme (Grades 11-12). Beyond academics, CIS offers extensive support services including Special Education Needs (SEN) support, Career Counselling, School Counselling, and Language Development. The school provides over 12 Co-Curricular Activities (CCA) and Student Clubs, Computer and Science Laboratory facilities, and Student Internship programmes. As a Cambridge Direct Centre, CIS facilitates on-campus Cambridge examinations and offers PSAT, SAT, and IB Diploma Programme qualifications.

Differentiator

Problem solved

Functional benefit

Products and services

• Cambridge Primary The primary-level stage of the Cambridge Pathway offered by Calcutta International School.
• Cambridge Lower Secondary The lower-secondary stage of the Cambridge Pathway offered by Calcutta International School.
• Cambridge IGCSE The IGCSE stage of the Cambridge Pathway offered by Calcutta International School.
• Cambridge A Levels The A Levels stage of the Cambridge Pathway offered by Calcutta International School.
• IB Diploma Programme An international diploma programme offered by Calcutta International School.

Quantifiable outcome

• 86% of Class of 2026 placed overseas at top universities worldwide
• +5 more outcomes

Named customers1 record

Segments4 records

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

One partnership is on record.

• Fortis HospitalsupportingOthersCIS maintains a close partnership with Fortis Hospital to ensure students have quick access to advanced medical care in case of medical emergencies. The on-campus infirmary is staffed by a qualified nurse and equipped to handle day-to-day health concerns, with Fortis serving as the referral hospital for serious medical situations.

Scale indicators10 records

Recent moves9 records

Expansion highlights4 records

Direct peers

• The Doon School: Premier Indian K-12 boarding school with strong national reputation and legacy positioning similar to CIS, both serving affluent Indian families seeking globally oriented education and elite university placements.
• Pathways World School: Premium K-12 international school in Gurgaon offering IB and Cambridge pathways with comparable emphasis on university placements and multicultural student body, making it a direct comp to CIS for benchmarking premium Indian international-school economics.
• The International School Bangalore (TISB): Established IB and IGCSE international day school in Bangalore with comparable fee tier, global university placements, and multicultural cohort; a strong comp for CIS's positioning and outcome metrics.
• Singapore International School (Mumbai): Mumbai-based international school offering IB and Cambridge pathways with a focus on global placements and multicultural cohort; comparable to CIS on curriculum mix and premium day-school positioning.
• Aditya Birla World Academy: Mumbai-based premium international day school offering Cambridge IGCSE, A Levels, and IB Diploma with comparable tuition tier and emphasis on global university placements; relevant Indian metro comp to CIS.
• Woodstock School: Historic international residential school in Mussoorie offering IB and Cambridge curricula with a multicultural student body and strong university placement record, comparable to CIS in legacy and curriculum mix.
• Good Shepherd International School: International residential school in Ooty offering IGCSE and IB pathways with a global student body and university placement focus; comparable to CIS as a legacy Indian international school with similar curriculum stack.
• Heritage Xperiential Learning School: Premium K-12 school in Gurgaon combining IB and experiential learning with strong university outcomes, positioned at similar tuition tier and serving the same affluent aspirational Indian family segment as CIS.
• Oberoi International School: Premium international school in Mumbai offering IB PYP, MYP, and DP with a multicultural student body and strong placements; comparable to CIS in tier, curriculum stack, and outcome-driven positioning.
• Mayo College: Elite Indian K-12 boarding school with a long legacy and affluent-family target segment; relevant comp for CIS on premium positioning, alumni outcomes, and brand-led admissions economics.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/calcuttainternationalschool
• LinkedInlinkedin.com/school/calcutta-international-school
• Instagraminstagram.com/calcutta.international.school

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Funding overview

Funding rounds

Investors

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M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Calcutta International School