Alponsa School is an unaided English Medium School recognized by the State Educational Board of Maharashtra. It is one of the undertakings of Sangli Mission Society which is registered as a minority religious, educational and charitable society, governed by the members of minority Catholic community.

The Constitution of India in its Articles 29 and 30 protects the cultural and educational rights of the minority communities. Article 29 of the Constitution of India protects the interests of the minority, especially regarding their language, script and culture. Article 30 ensures the right to establish and administer Educational institutions by the minority communities. Amongst the aims and objectives of the Sangli Mission Society, education is one of the principle agenda. Saint Thomas School always strives to maintain high academical standard, quality, values and Godliness in education. Importance of education has been understood as of primary importance since education helps everyone to discover own identity and destiny. It enables each individual to realize fully and effectively. Saint Thomas School has a definite, but participatory role to play in this ongoing process.

Alponsa School is a Catholic institution and it is an academic community, characterized by shared vision, responsibility and mutual love. Saint Thomas school is managed by the members of a catholic minority community and is committed in integral education of all students irrespective of any class, caste or creed. It stands for a just and human society.