Book on Venkatagiri Jameendaari

Dr.Kalidas Purushoththam has written a book after a painstaking study.I understand there was only one Princely state in AP before independance. Vizianagaram and Venkatagiri were the two largest Jameendaaris
The princely state was Banagaanpalli It ewas ruled by a nawab
The big jameendaaris were called saamsthaanaalu
The rulers of these samsthanaas contributed much to the arts of their times