This article deals with the different historiographic approaches to the new created political and economic situation in the Indian Ocean by the coming of Portuguese that are present in the Mamluk and in the Venetian historical sources of the 16th century, and more specifically in the Diarii of the Venetian state officer Marino Sanudo (1466-1533) and in the chronicle of the Egyptian historian, of Mamluk descent, Ibn Iyas (1448-1524) with the title Kitab bada'i al-zuhur fi waqa'i al-duhur. We brought to notice and analyzed the existent information of these two major historical sources about the two naval expeditions that Mamluks of Egypt organized and waged against the Portuguese in India in the years 1506-09 and 1516, in order to restore t...