Q. Yusuf Adil Khan declared independence in which of the following years to establish the Adil Shahi sultanate?
Answer: 1489 CE
Notes: Yusuf Adil Shah declared independence in 1489 CE, founding the Adil Shahi Sultanate. A former Georgian slave in the Bahmani Sultanate, he transformed Bijapur into a cultural hub, introduced Persianate culture, and patronized the arts, including the Jami Masjid. His reign included administrative reforms and trade promotion, fostering Bijapur's prosperity.