He was promoted to a captaincy on 13 Oct. 1784. He took a prominent part in the invasion of Mysore, conducted by Lord Cornwallis in 1791. He superintended the artillery employed in the sieges of Nandidrúg (captured 19 Oct. 1791) and Savandrúg (captured 21 Dec. 1791).
He was elevated to a captaincy on 13 Oct. 1784, contributing substantially to Lord Cornwallis's 1791 campaign against Mysore. He directed the artillery during the conquests of Nandidrúg (Oct 19, 1791) and Savandrúg (Dec 21, 1791).