When finding a route from Africa to India, Portugal benefited in several ways. First, it established commercial colonies throughout the journey, on the African and Indian coasts, which gave it an economic power in the area superior to that of other European powers.
Second, it stopped paying taxes to Muslims for the use of a route that was not of their own, to become the owner of an alternative route.
Third, Portugal controled the spice traffic through this new route, which gave it great power in Europe .