[1][2] After 1744, Grose learned accounting and record-keeping at John Bland's academy and boarding school in Bishopsgate, London.
In November 1749, he was elected as a writer for the British East India Company.
[1] He went to Bombay in March 1750, to work as a servant and writer for the British East India Company and arrived there in August 1750.
He is known for having written A Voyage to the East Indies, an account of his travel to India in the late Moghul period.
In addition to Grose's account of events, the 1772 edition of his book also contains an unrelated account of a journey by John Carmichael, also of the British East India Company, from Aleppo, Syria, to Basra, Iraq.