Who was the Sultan, who did not mint coin in his name?

Qutubuddin Aibak ruled for only four years (1206-1210) as a subordinate of the Caliph, and coins were minted in the Caliph's name rather than his own. This reflected the nominal suzerainty of the Abbasid Caliph over the Delhi Sultanate in its early years. His successor Iltutmish later established the practice of minting coins in the Sultan's own name.