The defeat of the combined Turkish and Gujarati forces at Diu represented a critical setback in Ottoman plans for expanding their influence into the Indian Ocean.
Without a suitable base or allies, failure at Diu meant the Ottomans were unable to proceed with their campaign in India, leaving the Portuguese uncontested in the western Indian coast.
Never again would the Ottoman Turks ever send so large an armada to India.

After the failed siege, the Ottomans returned to Aden, where they fortified the city with 100 pieces of artillery.
One of them is still visible today at the Tower of London, following the capture of Aden by British forces in 1839.
Suleiman Pasha also established Ottoman suzerainty over Shihr and Zabid, and reorganized the territories of Yemen and Aden as an Ottoman province, or Beylerbeylik.

The veteran Lopo de Sousa Coutinho later recounted that "it was said" that the Portuguese who had surrendered to Suleiman Pasha were all killed off in the Red Sea, on their way back to Egypt.
Indeed, at As-Salif, by Kamaran Island, the Pasha had all prisoners under his control massacred, 140 in total, and their heads put on display in Cairo.

Suleiman Pasha intended to launch a second expedition against the Portuguese in Diu, but this did not happen.
In 1540, the Portuguese sent a retaliatory expedition to Suez with a fleet of 72 ships, sacking Suakin, Kusayr, and spreading panic in Egypt.
In 1546, the Ottoman established a new naval base in Basra, thus threatening the Portuguese in Hormuz.
The Ottomans would suffer a strong naval defeat against the Portuguese in the Persian Gulf in 1554.
Further conflict between the Ottomans and the Portuguese would lead to the Ottoman expedition to Aceh in 1565.

The Indians would not take possession of the Diu enclave until Operation Vijay in 1961.
The defeat of the combined Turkish and Gujarati forces at Diu represented a critical setback in Ottoman plans for expanding their influence into the Indian Ocean. Without a suitable base or allies, failure at Diu meant the Ottomans were unable to proceed with their campaign in India, leaving the Portuguese uncontested in the western Indian coast. Never again would the Ottoman Turks ever send so large an armada to India. 
After the failed siege, the Ottomans returned to Aden, where they fortified the city with 100 pieces of artillery. One of them is still visible today at the Tower of London, following the capture of Aden by British forces in 1839. Suleiman Pasha also established Ottoman suzerainty over Shihr and Zabid, and reorganized the territories of Yemen and Aden as an Ottoman province, or Beylerbeylik.
The veteran Lopo de Sousa Coutinho later recounted that "it was said" that the Portuguese who had surrendered to Suleiman Pasha were all killed off in the Red Sea, on their way back to Egypt. Indeed, at As-Salif, by Kamaran Island, the Pasha had all prisoners under his control massacred, 140 in total, and their heads put on display in Cairo.
Suleiman Pasha intended to launch a second expedition against the Portuguese in Diu, but this did not happen. In 1540, the Portuguese sent a retaliatory expedition to Suez with a fleet of 72 ships, sacking Suakin, Kusayr, and spreading panic in Egypt. In 1546, the Ottoman established a new naval base in Basra, thus threatening the Portuguese in Hormuz. The Ottomans would suffer a strong naval defeat against the Portuguese in the Persian Gulf in 1554. Further conflict between the Ottomans and the Portuguese would lead to the Ottoman expedition to Aceh in 1565.
The Indians would not take possession of the Diu enclave until Operation Vijay in 1961.
Siege of Diu