CML, KCSL and HC are well renowned laity organisations in Catholic achurch. All these movements are concerned with the formation of children.CML is an organisation founded in Bharananganam, Palai for the enhancement of mission works whereas KCSL had its roots from Trichy which aims the catholic formation of school students.Pontifical Holy Childhood is the oldest among the three founded in 1858 in France. At present, HC gives formation for children upto class 4 in parishes whereas KCSL from class 5 to 12 in schools and CML for lay people from their first holy communion in our diocese.