This is a spiritual organization functioning in all the parishes of the Orthodox Church throughout the world. It takes care of the spiritual nurturing of the children, by bringing them up in the knowledge and fellowship of Jesus Christ and His Church. The classes are conducted in Malayalam for the children in Kerala and for others in English. It has a separate wing for the Outside Kerala Region (OKR).

The classes range from Pre-primary classes to the 12th class. As in secular schools, class ten concludes the secondary level and a certificate is awarded –Sunday School final Certificate (SSFC) to the successful candidates. Higher Secondary course is for another two years.

Syllabus
At present we follow a curriculum, jointly prepared and published by the Oriental Orthodox Churches which is revised from time to time. A complete revision of the whole syllabus is in the anvil. syllabus of pre-primary, Class I, Class II and Class XII will be revised w.e.f 2012 itself. A curriculam committee under the leadership of H.G Ykoob Mar Ireneos is actively involved in the revision.

OVBS
The vacation Bible School conducted during the mid summer holidays (OVBS) is a very vibrant wing of the O.S.S.A.E. we publish separate text books, devotional materials, song books and cassettes for the OVBS every year.

The headquarters of the OSSAE is located in the complex of the Devalokam Catholicate, Kottayam.