Who of the following rulers of medieval India gave permission to the Portuguese to build a fort at Bhatkal ?

1. A. Krishnadevaraya
2. B. Narasimha Saluva
3. C. Muhammad Shah III
4. D. Yusuf Adil Shah

Answer: A

Explanation

Krishnadevaraya, the most prominent ruler of the Vijayanagara Empire (1509-1529 CE) from the Tuluva dynasty, maintained friendly relations with the Portuguese. He granted them permission to build a fort at Bhatkal in 1510. This alliance was mutually beneficial, as the Portuguese supplied horses to the Vijayanagara army, which was crucial for their military strength, and gained trading privileges in return. This question tests specific factual knowledge about medieval Indian history and interactions with European powers.