CSI-All Saints Church is a church under the auspices of the Church of South India. It is located in the Trimulgherry locality of Secunderabad. It was originally a Garrison Church, presided by Army Chaplains but was subsequently bequeathed to the Church of South India, a uniting Church in 1947. The church currently serves the Tamil speaking congregation of Secunderabad and offers services in English every week and in Tamil every week.