The Church of South India (CSI) is the successor of the Church of England in India after Indian Independence. It came into being by a union of Anglican and Protestant churches in South India. It combined the South India United Church (union of the Congregationalists and the Presbyterians); the then 14 Anglican Dioceses of South India and one in Sri Lanka; and the South Indian District of the Methodist church With a membership of over four million,it is India's second largest Christian church after the Catholic Church in India. CSI is one of four united churches in the Anglican Communion.The inspiration for the Church of South India was born from ecumenism and inspired by the words of Jesus Christ as recorded in the Gospel of John (17.21). Just like the United Church of Christ (Congregationalist), one of their forbearer denominations, their motto is:That they all may be one; as thou, Father, art in me, and I in thee, that they also may be one in us: that the world may believe that thou hast sent me.'"That they all may be one" is also the motto of the Church of South India