Correct Answer: (b) He introduced the Iqtadari System.
Note: The actual name of Balban was Baha-ud-din. Nasirudding Mehmood had given him the title of 'Ulugh Khan'. He assumed the title 'Zil-e-Ilahi'. His tenure was from 1266 to 1286 century. Balban is famous for his reign theory. His royal principle of nature and essence was inspired by Persian reign. Balban described the king as 'Niyamat-e-Khudai' (representative of God). After attaining the power, he abolished the 'Turkan-e-Chahalgani', established by Iltutmish. The only revolt in the period of Balban was done by Subedar of Bengal, Tughril Khan in 1279 A.D., which was quelled by Balban and the rebels were hanged. The system of Iqtadari was introduced by Iltutmish.