The congregation of St. Theresa, CST was founded on 19 March 1931 in a small village called Mookkannur by Thomas Panat with the permission of Mar Augustine Kandathil, Bishop of Ernakulam.
The new Constitution was approved on 19 April 1963 by Archbishop Mar Joseph Parecattil who later was made Cardinal of Ernakulam Archdiocese.
Pope John Paul II raised Little Flower Congregation (CST Fathers) to the status of a Religious Institute of Pontifical Right on 21 December 1995.
The decree was signed officially on 2 February 1996 by Achille Cardinal Silvestrini, the prefect of the Sacred Congregation for the Oriental Churches.
The papal decree was given to The Superior General Little Flower Congregation on 10 February 1996 at the Major Archiepiscopal Curia of the Syro-Malabar Church on the visit of Achille Cardinal Silvestrini for the centenary celebration of the Archdiocese of Ernakulam.