Archbishop Mar George Valiamattam was born on 16th September 1938 at Punnathara in the Archdiocese of Changanassery as the eldest son of Thomas and Annamma Valiamattam. Later, his family migrated to Kodancherry in Calicut District.

The corporate educational agency of the Archdiocese of Thalassery commenced on 5th June 1967 with the decree no.G5, 23312/67 of Regional Deputy Director of Education, Kozhikode.