 Complete the following phrase:  The regiment was raised in June 1820 at Bombay as the 2nd Marine Battalion 12th Regiment of Bombay Native Infantry by Captain Deschamps. In 1824, it was designated as the 24th Regiment of Bombay Native Infantry. On 19 January 1839, it stormed and captured the city of Aden as part of a punitive expedition sent to rid the area of pirates. During the 