Zoroaster first appeared in Lloyd's Register in 1818 with I.Ross, master, Egginton & Co., owner, and trade Hull–Calcutta.

British ships were then free to sail to India or the Indian Ocean under a license from the EIC.

Her charter party only covered the journey to Simon's Bay so when she arrived the some 142 settlers had to transship on Albury.

The Register of Shipping for 1821 still showed Zoroaster with A.Ross, master, Eggington, owner, and trade Hull–Calcutta,[4] as it had for 1820.

The rajah found that the crew complained that Patton was cruel, beating them, and having beaten one lascar to death.

[7] Zoroaster's crew mutinied, murdered the captain, his wife, and the chief officer, and scuttled the vessel on or before 3 September 1836.

One of the mutineers reported that Zoroaster had had special ports cut into her sides to facilitate the loading of lumber.