Detailed Explanation:

Answer: Option 3 — Bahadur Shah

Sultan Bahadur Shah of Gujarat surrendered Diu to the Portuguese in 1535 in exchange for Portuguese military assistance against the Mughal emperor Humayun. This strategic port city on the western coast became a significant Portuguese trading and military outpost, marking an important phase in European colonial expansion in India.

📝 Short Notes: Portuguese in Gujarat

• Bahadur Shah (1526–1537): The last significant independent Sultan of Gujarat who faced Mughal pressure from Humayun.
• Treaty of Bassein (1534): Bahadur Shah agreed to cede Bassein to the Portuguese in exchange for military support against the Mughals.
• Surrender of Diu (1535): Bahadur Shah surrendered Diu to the Portuguese to secure naval and military assistance against Humayun's expanding Mughal empire.
• Portuguese Strategy: The Portuguese aimed to control strategic ports along India's western coast to dominate maritime trade routes.
• Death of Bahadur Shah (1537): He died under mysterious circumstances during negotiations with the Portuguese, possibly assassinated aboard a Portuguese ship.
• Portuguese Control: Diu remained under Portuguese control until 1961, when it was annexed by India along with Goa and Daman.