For part of his South Indian sojourn, St Thomas supposedly lived in hiding in a cave just south of the Adyar River. This grottolike space can be entered from inside the 16th-century Little Mount Church, 1km south of Saidapet train station. It still bears what some believe to be Thomas’ handprint, left when he escaped through a miraculous opening. Up some stairs behind the church is what is apparently Thomas' footprint.
Little Mount Church
Chennai (Madras)