What did portuguese do to the island and people of goa, india

 Portuguese captured the fort along with several iron artillery pieces.

At Pangim Albuquerque received envoys from the most important figures of Goa, and proposed religious freedom and lower taxes should they refuse to aid the Muslims. Thereafter they declared their full support towards the Portuguese and Albuquerque formally occupied Goa on February 17, 1510 with no resistance. 

Albuquerque reaffirmed that the city not be sacked and the inhabitants unharmed, under the penalty of death.

Albuquerque had captured Goa without royal orders, and was opposed by his captains in doing so. The king challenged the Portuguese establishment at Goa, but the council, the council confirmed it belonged to the Portuguese.

The Portuguese continued to run there colonies until they were liberated in December 1961.