Answer : 3. "ज़िल-ए-इलाही (ईश्वर की छाया)"
Explanation :

He declared the sultan as representative of God on Earth. Persian court model influenced Balban's conception of kingship. He took up the title of Zil-i-Ilahi (a shadow of God) and impressed upon the people that the king was the deputy of God (Niyabat-i-Khudai).