St Mary's Residential School was founded in 1987 by Dr. P. T Abraham, a visionary and educationist, caters to the social, intellectual and educational needs of children in and around Kollam city. The committed staff imparts value education to the children. The school comprises of over a 1000 students ranging from age 4 (LKG) to age 18 (twelfth grade). The alumni of school can be found in varied fields of medicines, engineering, teaching and the like.

St Mary's Residential School Ramankulangara, Kollam is one of the premier institutions in kollam. It is a co-educational school affiliated to C.B.S.E. This school is managed by ST Mary’s Educational and cultural society Thiruvalla. Since its inception the school provides quality education to students irrespective of caste, creed or status.