Complex sentence: The Missionary Society of St Thomas the Apostle is a Catholic missionary organization founded in 1968 in Kerala by the Syro Malabar Church, for missionary work in "less Christian areas" in and outside India.
Split into simpler sentences: The Missionary Society of St Thomas the Apostle is a Catholic missionary organization founded in 1968 in Kerala. It is the missionary of the Syro Malabar Church, for missionary work in less Christian areas in and outside India.