Locu Sinai Naique, also known as Lucas de Sa, was a Goan tax collector, born in a Konkani family of high social status that would convert to become Christian Brahmins on the islet of Chorão, in the former Portuguese Goa and Damaon.
[2] In the history of the Christianization of Goa by the Portuguese missionaries, one outstanding feature is the conversion of Locu Sinai Naique "the Greatest Giant of the Goan Brahmin Community".
Hence they were a great obstacle to evangelization in Goa, as is recorded in a letter written to King John III of Portugal by Martin Afonso de Melo on 6 November 1541.
Locu was affluent and rich but wars reduced him to poverty and as he was unable to meet his commitments to the Treasury (the income of three years 3500 pardaus accruing from the provinces of Salsette and Bardez, he was put in jail.
[5] Locu rode on a well-dressed horse and with an escort consisting of the Portuguese Grandees went through the streets of the city which were well decorated and ornamented, receiving Vivas from the people whilst at the same time the bells were ringing merrily.
The artillery too joined in the citywide rejoicing, but the most gratifying sounds to be heard were the voices of the Brahmins who in view of the fact that their chief had turned a Catholic thought that they too would do the same, and actually it did not take long for many to follow his example.
[7] On the recommendation of Bishop Juan de Albuquerque Locu was appointed Tanador-mor (Village Judicial Authority); in addition to this many honors, privileges and favours were conferred upon him.