Mohun Chund 

Mohun Chund was a Brahmin who supposedly had been converted to Christianity by Thomas, but he returned to his former religion, which was a bitter loss to the early work in India. See F. A. Cox, History of the Baptist Missionary Society, from 1792 to 1842, 2 vols. (London: T. Ward, and G. and J. Dyer, 1842), 1:93-96.