Detailed explanation and options for the selected question.
Qutb-ud-Din Aibak was the first Sultan of Delhi, establishing the Delhi Sultanate. Option "Iltutmish" consolidated the Sultanate, but was not the first Sultan. Option "Ala-ud-Din Khilji" was a later, more famous ruler. Option "Razia Sultana" was the first woman to rule Delhi but not the first Sultan.