 He always used the title in his inscriptions but never actually converted to Islam.The entire Telugu speaking areas which now form the state of Andhra Pradesh (an area greater than the size of France) were united and saw an efflorescence of all the arts, culture and military might under the rule of the Kakatiya Emperors.They finally fell in 1323 to the invading forces of the Delhi Sultan, Mohammad bin Tughlaq, whose Deccan (southern) governor Alauddin Bahman Shah eventually rebelled in 1347 setting up the independent Bahmani kingdom ruling from Gulbarga.