FOSA, Former Students Association of St Dominic's College Kanjirapally, is a platform where all former students, teachers and the existing and retired staff of the college come together and work for the well being and progress of the college and its students. There are department-wise alumni associations and FOSA functions as their common platform. All outgoing students get registered as members of FOSA. An annual get-together of the former students and teachers and a prestigious inter-collegiate debate competition are regularly organized by the FOSA. The rich and proud alumni of the college, including those who hold important portfolios in the legislature, executive and judiciary and the thousands who work and live in different parts of the world, add to the glory of the college.