Question: who was qutb ud din aibak?
Answer: Qutb al-Din Aibak (r. c. 1206–1210) was a general of the Ghurid king Mu'izz ad-Din Muhammad Ghori. He was in-charge of the Ghurid territories in northern India, and after Mu'izz ad-Din's death, he became the ruler of an independent kingdom that evolved into the Delhi Sultanate ruled by the Mamluk dynasty.