He took part in the Battle of Sadras on 17 February 1782, the Battle of Providien on 12 April 1782, the Battle of Negapatam on 6 July 1782, the Battle of Trincomalee from 25 August to 3 September 1782, and the Battle of Cuddalore on 20 June 1783. Suffren noted his performance favourably, especially at Cuddalore, where Moissac captained aloned, as Suffren had his flag on the frigate "Cléopâtre".