मुसम्मन बुर्ज़ - ताजमहल की तरफ उन्मुख आलिन्द (छज्जे) वाला एक बड़ा अष्टभुजाकार बुर्ज़Soon emperors from other dynasties commenced eyeing the fort and efforts to win about the identical started. In 1540, Sher Shah Suri on the Sur Empire waged a war in opposition to Humayun and defeated him at Bilgram.