The school was established in 1991 by Delhi province of Society of Jesus.

[1] It was authorised by the Central Board of Secondary Education (CBSE) for AISSE (All India Secondary School Examination) and AISSCE (All India Senior School Certificate Examination)[2][3] The name of school is based on its patron saint, St. Francis Xavier.

The Foundation Stone was laid by Richard Pereira a veteran educationist, on 12 January 1991.

On 15 July 1991, St. Xavier's School was officially started in rented accommodation in the Yadav Dharamshala, Behror,[5] in collaboration with the Congregation of the Missionary Sisters of Ajmer (MSA) under Sisters - Sheela, Charlotte, Annie Kujur.

On 4 January 1993 classes were shifted to the new school premises in RIICO Industrial area.