On her fourth voyage the French captured her in the action of 3 July 1810; she then took part in the Battle of Grand Port.

[5] Ceylon reached Bombay on 24 August, Tellicherry on 27 September, and Anjengo on 5 October, before arriving at Diamond Harbour on 18 November.

Homeward bound, she was at Saugor on 24 December, Vizagapatam on 27 January 1804, Madras on 21 February, and St Helena on 28 June.

[7] On the way the convoy ran into severe weather with the result that Prince of Wales foundered with the loss of all on board.

On this voyage, she had lost 46 men of the 110 she had set out with: 41 pressed by various ships of the Royal Navy, six dead of disease, six deserted, two drowned in Diamond Harbour, and one who had joined the Army.

Hudson, who by this time knew he was dying of "Bengal Fever", had made up his numbers with lascars, and some Danes, however the replacements were of a lower quality than the men lost, especially those the Navy had pressed.

On 21 November Ceylon was on her beam ends, almost capsizing; fortunately the weather temporarily moderated and she righted herself.

The men passengers, Army officers and invalided soldiers, manned the pumps while the functioning crew members threw guns overboard.

As Ceylon limped towards Cape Town a fever passed through the vessel killing a baby born on 11 November, five soldiers, and three crewmen.

The convoy encountered a French frigate squadron under Guy-Victor Duperré, leading to the action of 3 July 1810, where Minerve captured her.

[10] Lieutenant Vincent Moulac took command of Ceylon, renamed Ceylan, and the frigate squadron returned to Île de France with its prizes.

Ceylon enters the Register of Shipping for 1813 in the supplemental pages with Morse, master, and Carling & Co. as owner.