The church shows prominent features of Neoclassical architecture, it is inspired by St Martin-in-the-Fields in London.
It was designed and executed by Major Thomas de Havilland and Colonel James Caldwell of the Madras Engineers.
The circular part 24.5 m in diameter, is crowned by a shallow masonry dome colored a deep blue.
[2] An architectural marvel, the dome has a framework of brick supported by an annular arch and is filled in by pottery cones.
[citation needed] Dominating the altar is the pipe organ in dull green and burnished gold.