St.Thomas' Boys' School

St.Thomas' Boys' School In 1790 a 15 bigha plot with a house was bought at what subsequently came to be known as “Free School Street”. There has been no looking back since 1789!

The official Instagram account of one of the oldest schools in India and the oldest school in Kolkata
🇬🇺 Estd 1789 (234 years ago)
For updates on the school's events, achievements and various other news, keep checking into this page. Nisi Dominus Frustra - Except the Lord in Vain

The moment one enters No.4 Diamond Harbour Road one is brought to book with nature for a sprawling 26 acre campus with

a scenario one rarely comes across in the city, leaves one envious both to teach and be taught in an environment which reckons in being very close to a health resort. Today the Institution with a student force of 5000 + (Boys and Girls) has a skyline juxtaposed with administrative regular school and hostel blocks leaves us wondering as to how deep are its roots. The ethos of the school seem to echo the essence of an age old manuscript. “A Proposal for the Institution of a free school society in Bengal, 1789, which Declares” “The want of some Public Institution in the large Settlement, for the education of the Children of both sexes, has been gradually becoming more sensible as the place itself has increased”. Delving into the past the school, can trace back its origin to 1789 when the document “A proposal for the Institution of a free school society in Bengal suggested the settling up of a fund to finance needy children of the society”. This resulted in the establishment of a Free School Society” and the “Free School” was meant primarily for “Indigent Children” who stayed there till 12 (Girls) and 14 (Boys). Both the boys’ and the girls’ schools operated from there. Today part of the land houses the food and rationing offices. It was only at the beginning of this century that the authorities decided that the “Free School Street Premises” was “Unsuitable” and thought of shifting the school to Ranchi. The idea was abandoned as parents objected and the choice fell on “Kidderpore House” at 4, Diamond Harbour Road. In 1914 the “Free School Society” approached the government for “Kidderpore House” and the school started in full from there in 1916. In 1917 it was decided, that the “Free School” would be converted, into the St. Thomas’ School for better management and in 1923 the “Calcutta Free School” was officially named St. Thomas’ School after the Apostle on whose day the original “Free School Society” had been founded. World War II saw “Kidderpore House” converted into a military hospital and the school was shut down. The girls section was shifted to Panchmari; Madhya Pradesh and the boys to Takdah near Darjeeling. With the war coming to an end the boys were shifted onto the campus for the first time. There were radical changes after independence when the Viceroy and Governor General left India and the nation’s President became patron and the school opened door to non-Europeans and other communities. Over centuries the sky like at “4, Diamond Harbour Road” has been interspersed with new buildings that have come up to accommodate the 5000 + boys and girls.

Behind every student’s success is a mother’s silent prayer and tireless support ❣️  From our first lessons to our bigges...
10/05/2026

Behind every student’s success is a mother’s silent prayer and tireless support ❣️ From our first lessons to our biggest milestones, SHE is the guiding light that never fades ✨️

St. Thomas’ School and the ALTHOMS community celebrates the women who shape our futures with love and grace. Happy Mother’s Day to all the wonderful mothers ♥️

Honouring the timeless wisdom of  Rabindranath Tagore 🤍On this Rabindra Jayanti, we celebrate a legacy that continues to...
09/05/2026

Honouring the timeless wisdom of Rabindranath Tagore 🤍

On this Rabindra Jayanti, we celebrate a legacy that continues to inspire us to think deeply, live meaningfully, and learn beyond boundaries 📖✨

Warm wishes from St. Thomas’ School and Althoms 🌿

11:11 is calling… are you ready to return?On 11.01.2026, we proudly present ALTHOMS Reunites 1.0 — the homecoming Thomas...
21/11/2025

11:11 is calling… are you ready to return?
On 11.01.2026, we proudly present ALTHOMS Reunites 1.0 — the homecoming Thomasites & Thomasinas have been waiting for.

The corridors that echoed with our laughter, the grounds that witnessed our stories, and the legacy we carry in our hearts… it all awaits your return.
This is THE reunion you simply can’t miss.

SCAN • REGISTER • RETURN HOME.

Link in BIO.

🎪 Step into the Fun Zone!Catch us at the Carnival on the 22nd & 23rd of November!Swing by the ALTHOMS Alumni Stall — wal...
18/11/2025

🎪 Step into the Fun Zone!
Catch us at the Carnival on the 22nd & 23rd of November!

Swing by the ALTHOMS Alumni Stall — walk in, register, and unlock a special surprise crafted just for you… an exclusive souvenir to take home! 🎁✨

Let’s relive our school spirit, celebrate childhood memories, and create moments that every Thomasite & Thomasina will treasure forever.
See you there!

Back again, carrying forward the tradition !Join us for Tea & Talks : 2.0 hosted by the Principals’ of the Boys’ and Gir...
17/11/2025

Back again, carrying forward the tradition !

Join us for Tea & Talks : 2.0 hosted by the Principals’ of the Boys’ and Girls’ School of St. Thomas’ School, Kidderpore.

SCAN & REGISTER FOR FREE Now !

With pride, we present the Official Logo of ALTHOMS — the Alumni Association of St. Thomas’ School, Kidderpore — blessed...
13/11/2025

With pride, we present the Official Logo of ALTHOMS — the Alumni Association of St. Thomas’ School, Kidderpore — blessed and launched under the patronage of His Grace, The Most Revd. Dr. Paritosh Canning, Moderator of CNI, Bishop of Calcutta and Hon’ble Chairman of St. Thomas’ School.

A mark of unity, honour, and tradition, uniting Thomasites and Thomasinas — past, present, and future — under the timeless motto “Nisi Dominus Frustra”.

The wait is over — our legacy now speaks. 🤖From chalkboards to chatbots, the journey continues.Introducing STS AI, the d...
09/11/2025

The wait is over — our legacy now speaks. 🤖
From chalkboards to chatbots, the journey continues.
Introducing STS AI, the digital voice of our 234-year-old tradition.
Built to connect students and alumni through time — where history meets innovation.
💬 Drop a message and see how legacy talks back. 👀

Say hi 👋 to STS AI and see how 234 years of legacy replies.

🌿STS ALUMNI PLANTATION DRIVE 2025 🌿A legacy of gratitude, rooted in green beginnings.Organised on 13th July, 2025 with l...
13/07/2025

🌿STS ALUMNI PLANTATION DRIVE 2025 🌿
A legacy of gratitude, rooted in green beginnings.

Organised on 13th July, 2025 with love and pride by the St. Thomas’ School Alumni, the Plantation Drive 2025 was a heartfelt initiative held in the gracious presence of His Grace, The Rt. Revd. Dr. Paritosh Canning - Bishop of Calcutta and Chairman of St. Thomas’ Boys’ School.

With the unwavering support and encouragement of our Principal, Mr. Suman Biswas, who beautifully echoed our mission with the tagline –
“Green St. Thomas , Clean St. Thomas” the event stood as a tribute to the past, and a promise to the future.

A special note of thanks to EACH ONE ! PLANT ONE ! – whose generous contribution of 150+ new saplings helped us to bring this green dream to life on our beloved school campuses.

This day was more than a plantation drive – it was a reunion of hearts and heritage. A moment where seniors and juniors, Ex-Thomasians and Ex-Thomasinas, joined hands in unity – from both the Boys’ and Girls’ Schools – celebrating a shared purpose and timeless bond.

Let the roots we’ve planted today grow into trees of tomorrow’s pride. 🌱

On May 17th, under the banner of St. Thomas' School Alumni (Althoms), a friendly football match was organized, aptly tit...
18/05/2025

On May 17th, under the banner of St. Thomas' School Alumni (Althoms), a friendly football match was organized, aptly titled "Back to the Field". Eight teams from batches spanning the early 90s to the Class of 2025 participated, showcasing the true spirit of the game.

We're deeply grateful to our revered Principal, Mr. Suman Biswas, whose visionary leadership and encouragement made this event possible. By opening the doors of St. Thomas’ Boys’ School to ex-students, sir set the perfect tone for a memorable fellowship. His initiative and support were instrumental in bringing this tournament to life.

Our heartfelt thanks to our esteemed seniors who played a pivotal role in making this tournament a success. Kudos to the young and dynamic ex-students who worked tirelessly behind the scenes to ensure the grand success of this football match!

This was more than a match; it was a reunion of legacy and loyalty.

We were honoured to welcome legendary cricketer and former BCCI President, Mr. Sourav Ganguly, to the Bishop Canning Spo...
05/04/2025

We were honoured to welcome legendary cricketer and former BCCI President, Mr. Sourav Ganguly, to the Bishop Canning Sports Academy (a unit of St. Thomas’ Boys’ School) today.

Currently serving as the Chairman of the ICC Men’s Cricket Committee, Mr. Ganguly graciously took time out of his schedule to engage with our young athletes. His visit was a source of immense inspiration, as he shared his invaluable insights, experiences, and deep passion for the game of cricket.

The students were elated to interact with such an iconic figure in Indian cricket. It was a memorable and motivating experience that will undoubtedly encourage them in their journey toward sporting excellence.

We thank Mr. Ganguly for his presence and look forward to many more such inspiring engagements in the future.
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Get ready to step into a world of frosty fun and festive cheer! ❄️🎉 Join us at St Thomas’ School Winter Carnival for a m...
19/11/2024

Get ready to step into a world of frosty fun and festive cheer! ❄️🎉 Join us at St Thomas’ School Winter Carnival for a magical day of games, food, and memories that will warm your heart this season. Don’t miss out! 🌟
P.C 📸:- , .pvt
Are you excited to join us for the Winter Carnival? ❄️✨

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Kolkata

Opening Hours

Monday 9am - 1pm
Tuesday 9am - 1pm
Wednesday 9am - 1pm
Thursday 9am - 1pm
Friday 9am - 1pm

Telephone

033 2479--3241

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