In which year the Portuguese started proselytizing the local Koli Kunbi Kumbhar population in Mahim ...........

Explanation:

The Portuguese encouraged intermarriage with the local population, and strongly supported the Roman Catholic Church. In 1560, they started proselytising the local Koli, Kunbi, Kumbhar population in Mahim, Worli, and Bassein. These Christians were referred to by the British as Portuguese Christians, though they were Nestorian Christians who had only recently established ties with the Roman Catholic Church. During this time, Bombay's main trade was coconuts and coir.