•Later
campaigns extended it along the plains of the Ganges to Bengal.
•A
lieutenant to Muhammad, Qutb-ud-Din Aibak, later formed a new
state, with its capital at Delhi on the Ganges plain.
•The
succeeding dynasties, the sultans of Delhi, were military
states.
•Their
authority was limited by factional strife and dependence upon Hindu
subordinates.
•They
ruled much of north-central India for the next 300 years.