The monopoly of overseas spice trade from Malabar Coast was safe with the West Asian shipping magnates of Kerala ports. The Muslims were a major financial power to be reckoned with in the kingdoms of Kerala and had great political influence in the Hindu royal courts. Travellers have recorded the considerably huge presence of Muslim merchants and settlements of sojourning traders in most of the ports of Kerala. Immigration, intermarriage and missionary activity/conversion — secured by the common interest in the spice trade — helped in this development.