Quṭb al-Dīn Aibak  ( Arabic : قطب الدين أيبك ) also spelt Quṭb ud-Dīn Aibak or Qutub ud-Din Aybak , (1150–1210), was the founder of the Turkic Mamluk Dynasty in Delhi .
He was finally purchased by the ruler of Ghor in central Afghanistan , Sultan Muhammad Ghori. Qutubuddin Aibak gradually rose to the rank of a Commander and became one of the most trusted slave of Sultan Ghori. The conquests of northern India were executed mainly by Qutb-ud-din Aibak, which helped Ghori to consolidate his position there. Gradually, as Sultan Ghori concentrated on Central Asia after 1192, he was given the independent charge of the conquests in India. Qutb-ud-din Aibak gave large sums of money in charity, thus earning the name LAKH BAKSH or giver of lakhs.
Muhammad Ghori had no son and, therefore, he had distributed his vast empire among his nephew and faithful lieutenants Qutbuddin- Aibak as he was his most trusted lieutenant got his Indian possessions by his own choice.