Princely state Hyderabad was ruled by different Nizams who were elected on the basis of _______.
Princely state Hyderabad was founded by Mir Qamar-ud-Din Siddiqi, in the year 1724. Seven generations of the dynasty ruled for more than 200 years. The rule continued till 17 September 1948 when last Nizam had to surrender to police action and gave away Hyderabad. The Rulers occupied throne based on hereditary.