The present work attempts to study the development of Brahmanical Cults and Associated Iconography (c. 400 B.C. to A.D. 600). In this connection an in depth study of the sources both literary as well as archaeological have been made. The development of the Brahmanical cults have been traced in chronological order for the first time which goes to show how the cults reached from their formative stages to the climax in 600 A.D. It also discuss the Iconographic treatises written for making the perfect images of cult deities. It discusses Vaisnava, Saiva, Mother-goddess and others include Yakses, Nagas, Kinnaras, Gandharvas in detailed form, besides throws light on the concept of the Rituals, Puja and Temples.