Fortunately, the British had taken possession of the island of Bombay, which Charles the Second had obtained from the King of Portugal as part of the dowry of the Infanta Catharine, and made over to the East India Company. Bombay was nearly two hundred miles to the south of Surat, and hedged around by the Mahrattas, but being an island it was well protected, and included both a fortress and a town. Moreover, it had a magnificent harbour, and the valuable trade with the Persian Gulf, the Red Sea, and the Mozambique could be better carried on from this harbour than over the bar of Surat at the mouth of the river Tapty. Accordingly the East India Company secretly resolved on leaving Surat for ever, and removing the British factors and their trade to the island of Bombay. [Sidenote: Bengal trade, 1640-85.] In Bengal the East India Company had established a factory at Hughly, hard by the dismantled Portuguese fortress; but were exposed to so much insolence and extortion from the Mogul authorities that they were prepared to leave Bengal rather than tamely submit to further oppression. The trade was enormously profitable, and had helped to defray the cost of the fortifications at Madras and Bombay. Saltpetre had been in large demand ever since the breaking out of the civil war between Charles the First and his parliament. Raw silk and opium were equally marketable, and all three products could be brought from Patna to Hughly by the river Ganges. At Dacca, the old capital of Bengal to the eastward of the Ganges, muslins were manufactured of so fine a texture that a piece sufficient for a dress might be passed through a wedding ring; and every young lady in the British Isles who aspired to be a bride was equally anxious to be led to the altar in a cloud of Dacca muslin. Aurangzeb, however, stopped the supply of saltpetre, because the Sultan of Turkey complained that it was used by Christians in their wars against true believers; whilst the Nawab of Bengal, who resided at Dacca, was most overbearing, and on one occasion ordered that Mr. Job Charnock, the chief of the Hughly factory, should be imprisoned and scourged, and his orders were literally obeyed by the Hughly officials. [Sidenote: Plans of Sir Josiah Child, 1685.]