this is some important books in electrical machine
(1) Electrical Machines 2E
By Bhattacharya
(2) Electrical Machines
By Ghosh
(3) Electrical Machines: Theory And Practice
By Bandyopadhyay
(4)A Textbook of Electrical Machines
By R. K. Rajput
(5) Electrical Machines
By V.U.Bakshi U.A.Bakshi