After consolidating his power, Balban assumed the grand title of "Zil-i-Ilahi."
Balban, also known as Ghiyas ud-Din Balban, was a prominent ruler of the Delhi Sultanate in medieval India. After successfully establishing his authority and stabilizing his rule, Balban took on the grand title of "Zil-i-Ilahi," which translates to "Shadow of God" or "Shadow of Allah."
The adoption of such a grand title was a common practice among rulers of the Delhi Sultanate and other Islamic dynasties in the region. It was meant to signify the ruler`s close association with divine authority and to enhance their prestige and legitimacy.
Therefore, the correct answer is "Zil-i-Ilahi."