Multiple choice Who among the following was the first sovereign sultan of Delhi? Qutbuddin Aibak Balban Alauddin Khilji Iltutmish Reveal answer Fill a bubble to check yourself D Correct answer Explanation Iltutmish is considered the first sovereign sultan of Delhi because he received the formal investiture (manshur) from the Abbasid Caliph, which gave his rule legal legitimacy and independence from the Ghurid rulers.