Founded in 1930 by an English missionary, Miss Helen Jerwood, St. Thomas' Girls Senior Secondary School, New Delhi (Located at Karol Bagh and Mandir Marg) is an institution run by the Diocese of Delhi, Church of North India.. Dedicated to the education of girls, STS as we fondly call it, is recognized by the Department of Education, Delhi and is permanently affiliated to the Central Board of Secondary Education and prepares students for the All India Senior School Certificate Examination.

Those who come under our care learn to care for others.

The school?s philosophy of reaching out, of taking responsibility of the disadvantaged and of selflessly committing oneself to the tasks assigned by the Lord Almighty is deeply ingrained in our teaching. Our Special children, a source of inspiration , our Prerna give us this opportunity to inculcate respect and appreciation for individual differences.

While academic excellence is of paramount importance, the students never lose sight of the enduring human values that they are guided by.