Explanations:Qutbuddin Aibak, often referred to as the "Lakh Baksh" (Giver of Lakhs), was a significant figure in the early history of the Delhi Sultanate. He served as a general under Mohammad Ghori, who was a prominent ruler of the Ghurid Empire. Mohammad Ghori, also known as Mu'izz al-Din Muhammad, was a powerful ruler who sought to expand his empire into India. Aibak played a crucial role in this expansion, particularly in the conquest of Delhi and Ajmer.
Qutbuddin Aibak was originally a slave of Mohammad Ghori, who recognized his military prowess and appointed him as a general. Aibak's military campaigns under Ghori were instrumental in establishing a foothold in northern India. After Ghori's death, Aibak took over the administration of the Indian territories and eventually became the first Sultan of Delhi, founding the Mamluk dynasty.
It is important to understand the historical context and the timeline of these events. Mahmud of Ghazni, who ruled in the early 11th century, was an earlier invader of India and did not have Qutbuddin Aibak as a general. Muhammad bin Tughlaq, who ruled in the 14th century, was a much later ruler and did not have Aibak as a general either. Iltutmish, who succeeded Aibak, was a different ruler who came after Aibak's reign.
Therefore, the correct answer is that Qutbuddin Aibak served as a general under Mohammad Ghori, who was his master and the ruler under whom he gained significant military experience and eventually laid the foundation for the Delhi Sultanate.