[3] St. Michael's School had its name changed in 1953 by the Sisters Charity of Nazareth, Ann Bernadette, Patricia Mary and Ellen Maria.

The school was named after Nazareth, a city in Israel associated with Jesus Christ.

Under the leadership of Mother Engelbert, the Sisters of the Institute of the Blessed Virgin Mary came to establish this first convent school in Gaya.

The Junior and Senior Cambridge Courses were eventually discarded, and for some years the students became private candidates for the Bihar Board examinations.

In 1981 recognition from the Central Board of Secondary Education in Delhi was obtained, and the first candidates passed in 1983.

Each year has seen a class of approximately 140 boys and girls passing the All India Secondary School Examination of the Delhi Board.

The teaching staff expanded, and the school passed from American to Indian hands.

It was begun in 1975 when the Sisters became acutely aware of education for the non-school-going children of their neighbourhood.

NOSA also conducts a free health check-up of the school students by doctors who are Nazareth pass-outs.

Through such interactions, the alumni teach young people the history of Nazareth Academy.

It also finances poor students of the school, giving prizes worth ₹15,000 annually to toppers of various subjects.