Mgr.Champenois, appointed by Rome was ordained Bishop in 1786 at Pondicherry. Mgr.Brigot handed over all his responsibilities to his Co-adjutor and after a period of 5 years in prayer and suffering he passed away in 1791. It was about this time that Mgr.Champenois built a new building for seminary near the Cathedral and completed it in 1790.
In 1805 Mgr.Champenois, 71 years old and tired who wanted to retire asked for a Co-adjutor. Mgr.Hebert was to be ordained on 1st of May 1810. But Mgr.Champenois fell down and was indisposed. The ordination was postponed till his death.
During his time the Mission had to face severe persecutions of Christians by Tippu Sultan in India and the French Revolution in France.
