मुसम्मन बुर्ज़ - ताजमहल की तरफ उन्मुख आलिन्द (छज्जे) वाला एक बड़ा अष्टभुजाकार बुर्ज़Before long emperors from other dynasties began eyeing the fort and efforts to get more than precisely the same started. In 1540, Sher Shah Suri on the Sur Empire waged a war from Humayun and defeated him at