ST. Xavier’s School, Mariahu was established and is administered by St. Xavier's Educational Society registered under the societies Registration Act XXI of 1860 No. 16 of 1988-89 and also is a bonflde member of Catholic Educational association, of up+uk and affiliated by C.B.S.E. of New Delhi.

This institution was started with the object of imparting an integral formation to students that they may race life fearlessly, grow up to the full stature of their personality, and contribute their share for the progress and well-being of our country as well as the world at large. Towards this integral formation of the students, their spiritual, intellectual, moral, physical, cultural and social aspects are taken into account. It is not a service oriented formation but insistence is on the formation of noble personality with healthy relationship with God and the entire creation and who will hold their heads high without bowing before insolent might.