Sultan Ghiyasuddin Tughlaq was the founder of the Tughlaq dynasty in India, ruling from 1320 to 1325. He is known for his efforts to consolidate power and expand the Delhi Sultanate. His reign was marked by military campaigns and administrative reforms aimed at strengthening the central authority. Ghiyasuddin Tughlaq is also recognized for his architectural contributions, including the construction of the Tughlaqabad Fort in Delhi. His rule, although short-lived, laid the groundwork for future rulers of the Tughlaq dynasty, influencing the political landscape of medieval India.