Question

Who succeeded Qutb-ud-bin Aibak ? Why is the person called the real founder of the Sultanate?

Answer 1

irukken but I don't why he is called so

Answer 2

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Aibak was succeeded by Aram Shah, and then by his former slave Iltutmish, who transformed the loosely-held Ghurid territories of India into the powerful Delhi Sultanate.