S t. Thomas Higher Secondary School, Barnagar is a private unaided school under the general management of the Catholic Diocese of Ujjain, registered under the M.P Society Registration Act 1973 (No.44 of 1973, Reg. No. 3483). In particular it is run by the Catholic Church at Barnagar. The management enjoys minority rights as enshrined in the Constitution of India: Art 30.

The School is affiliated to Council for the Indian School Certificate Examinations, New Delhi and its affiliation number is MP 029.

St. Thomas H.S. School had its simple origin with its Kindergarten Classes in the year 1974 in the Catholic Church Campus at Barnagar. The earnest desire of the parents and students of the Town and surrounding villages was the motivating force to develop it into a co-educational higher secondary school. The school was provisionally affiliated to C.I.S.C.E in 2008, and it received permanent affiliation in 2011.

The School bears the name of St. Thomas, one of the twelve apostles of Jesus Christ. St. Thomas came to India in 52 A.D with a mission to preach and teach the good news of Jesus Christ. He died as a martyr at Mylapore in Madras, but his mission and vision continues and still leads many from darkness to the light (THAMASOME JYOTHIGAMAYA).

The motto of the school is “Thamosoma Jyothigamaya” (Lead from Darkness to the Light). The vision of the school is ‘A society in which all might have life in its fullness’ and mission of the school is ‘to provide an education of quality and relevance to all’.

The medium of instruction of the school is English.

The purpose of the School is to help in the formation of the children. The school aims at the harmonious development of the physical, mental and moral powers of the students, so as to make them good patriotic citizens ever day to serve the country in the various circumstances of their lives.

The School year is from April to March.