Explanation:

1 and 2 only

First Portuguese Colony at Calicut
Two years after Vasco’s discovery, another Armada came in 1500 under Pedro Álvares Cabral. He had discovered of Brazil on the way. He was able to make some fruitful treaties with the rulers of Kozhikode and Cannanore and established first Portuguese factory at Calicut.

However, he had to fight with the Arabs in the efforts of creating a niche for Portuguese. During these fights, he captured some of the vessels of the Arabs and killed their crew. Arabs retaliated by burning down the factory and killing several Portuguese. This is called Battle of Calicut. In 1501, Cabral had to go back to Portugal, defeated and humiliated.
In 1502, Vasco returned to India and this time, he was able to get some favor from local rulers. His demand to get the Arabs expelled from the area was not fulfilled and so he started some serious naval fights in the region.

Consolidation of Empire
In 1503, Francisco de Almeida was sent as Governor and Viceroy of Estado da India. He was able to erect some fortresses at Cochin, Cannanore, Kilwa and Anjadiva. He had to engage in a fierce fight with a Muslim confederacy of Muslims of Egypt, Turkey and Gujarat. He was able to defeat them but died soon in 1510. He was replaced by Alfonso de Albuquerque.

Afonso de Albuquerque invaded Goa in 1510 and fought the Battle of Goa (1510) with the forces of Sultan of Bijapur Adil Shah. In this battle, he was able to take possession of some of territories of Goa and made them the Portuguese colonies. He started first Portuguese mint and issued coins in Gold, Silver and Bronze with badge of Portuguese Kings. In 1511, he was also able to win Malacca {Malaysia} by defeating the Arab merchants.

Albuquerque is known as real founder of Portuguese colonial empire and a Portuguese Cultural Ambassador also. In view of the paucity of manpower in Portugal, Albuquerque had encouraged the lower classes of the Portuguese settlers to marry Indian women. From that time onwards, the Portuguese started settling in Goa and marrying the local ladies. Albuquerque was the first to abolish the practice of Sati, which was vogue in that time, in his territories.

The next important Portuguese Governor was Nuno da Kunha, who brought Mombasa, Mozambique etc. under Portuguese circle.  During his term, Vasco had come to India for a smaller duration under pompous title of Viceroy of India but he died in 1524 in Cochin.

By 1529, Nuno was able to capture Daman and Diu from Gujarat’s ruler Bahadur Shah and compelled the Indian ruler to sign a Treaty of Bassein. Via this treaty, Bahadur Shah gave Bassein {Vasai and Nalla Sopara area of Mumbai’s Thane district} to Portuguese. When Gujarat was captured by forces of Mughal emperor Akbar, Bahadurshah tried to win support of Portuguese by giving them Mumbai and surrounding areas. Bahadurshah was later killed by his Portuguese friends on a ship and his body was thrown in Arabian sea. By 1534, Portuguese had acquired Mumbai, Vasai, Virar, Daman and Diu, Surat and entire Goa. In 1579, they had established the town of Hooghly-Chuchura.