1. Amongst the entire European nations Portugal was the foremost to make a dynamic attempt to discover a sea route to India.
2. Vasco da Gama came to India and founded a trading centre at Cannanore. One after another, they established factories at Calicut and Cochin.
3. Almeida defeated the combined Muslim fleet in a naval battle near Diu, and by the year 1509, Portuguese claimed the naval supremacy in Asia.
4. The real founder of the Portuguese power in India was Alfonso de Albuquerque. He captured Goa from the Sultan of Bijapur in November 1510.
5. During the 16th century, Portuguese succeeded in capturing Goa, Daman, Diu, Salsette, Bassein, Chaul and Bombay on the western coast, Hooghly on the Bengal coast and Santhome on the Madras coast and enjoyed good trade benefits.
Thus, the Portuguese established their trading centres in India.