The Diu Fort, is located on the west coast of India in Diu, a Union Territory, administered by the Government of India. The fort was built by the Portuguese during their colonial rule of the Diu island. The Diu town is located to the west of the fort. The fort was built in 1535 subsequent to a defense alliance forged by Bahadur Shah, the Sultan of Gujarat and the Portuguese when Humayun, the Mughal Emperor waged war to annex this territory. The fort was strengthened over the years, till 1546. Portuguese ruled over this territory from 1537 (from the year they took control of the fort and also the Diu town fully) till 1961 (for 424 years, the longest period by any colonial rule in the world) they were forced to quit only in December 1961 (even though India became an independent country in 1947) during a military action called the “Operation Vijay” launched by the Government of India, whereafter Diu was merged with India and became a centrally administered Union Territory (UT).
The importance of the Diu Fort was highlighted by an opinion poll conducted (through the Internet and telephone when 239,418 people participated in Portugal) by the Portuguese (Portuguese government’s initiative) to list out the New Seven Wonders of Portugal built during their colonial rule. The Diu fort and the Basilica of Bom Jesus in Old Goa were chosen as the two wonders from India, among the seven from across the world, out of a list of 27 monuments built in 16 countries during the Portuguese rule. This list of new monuments was declared on June 10, 2009 on the occasion of the Portuguese National Day held in Portugal. The district administrator of Diu encouraged by this announcement said:
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