Nirmala Convent School,started on 19th July 1973 an English Medium school under the management of Sagar Diocesan service Society.(Reg.In Sept.28 th 1972). It was started in a rent free Muncipal store building near Thalab by the first Patron Rt.Rev.Dr. Clemens Thottungal,C.M.I.,the Bishop of Sagar.Later, on 15 th May,1977 the School was shifted to the present building.Primary School section was recognised by Deputy Director of Education in 1978- 79 and Middle section was recognised by Deputy Director of Education in 1981-82. At present the school is blooming fast under the able guidance of our present Patron Rt.Rev.Dr.Anthony Chirayath, Bishop of Sagar.Nirmala Convent School became a High School in 1995 and Higher Secondary School in 25th April 1998.