Fort Diu is positioned at the west coast of India in Diu, a Union Territory, administered via the Government of India. The fortress turned into built by the Portuguese at some point of their colonial rule of the Diu Island. The Diu town is placed to the west of the fort. The fortress become built in 1535 next to a defense alliance cast by way of Bahadur Shah, the Sultan of Gujarat and the Portuguese while Humayun, the Mughal Emperor waged war to annex this territory.
The citadel was bolstered through the years, till 1546. Portuguese ruled over this territory from 1537 from the year they took control of the castle and additionally the Diu metropolis completely till 1961 for 424 years, the longest period by means of any colonial rule inside the world they were forced to give up simplest in December 1961 despite the fact that India became an impartial united states in 1947 at some point of a navy motion referred to as the Operation Vijay released via the Government of India, where after Diu become merged with India and have become a centrally administered Union Territory.