The Church of South India (CSI) is one of the largest Christian church in India based on the population of members, and claims to be the largest Protestant denomination in the country. The Church of South India is the successor of a number of Anglican and Protestant denominations in India, including the Church of England, the Methodist Church and the Church of Scotland 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 nearly four million, CSI is one of three united churches in the Anglican Communion, the others being the Church of North India and the Church of Pakistan. 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. 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.'