Complex sentence: Traditions, stories and ballads points out that St. Thomas (or St. Bartholomew) had come to preach the Good News to Jewish settlements in Kerala who later intermarried with Brahmin and Nair communities and became Syrian Christian families with a distinct Judeo-Indian culture.
Split into simpler sentences: Traditions, stories and ballads points out that St. Thomas (or St. Bartholomew) had come to preach the Good News to Jewish settlements in Kerala. The Jews later intermarried with Brahmin and Nair communities and became Syrian Christian families with a distinct Judeo-Indian culture.