The United Church of Northern India (UCNI) is a mainline Presbyterian Church society in India belonging to the Protestant Christian denomination. The United Church of Northern India is the Church constituted by the union in 1924 of the Presbyterian Church in India and the Congregational Churches as have since that date been admitted to membership of the United Church of the Northern India by the Church Courts competent so to admit them. The United Church of Northern India, being of the Catholic Christian denomination, acknowledging the Father, the Son & the Holy Spirit, One God blessed for evermore. It was founded on the word of God as contained in the Scriptures of the old and new Testaments and on the inward witness of the Holy Spirit, deriving its authority form the Lord Jesus Christ, the only Head of the Church, administering its affairs through local churches, Church Councils, Synods and a General Assembly.