This book is an exhaustive study on Tantric Buddhism touching upon all aspects of the religion as it evolved through centuries.The introductory chapter describes the meaning of the tantras, their antiquity and the emergence and growth of Tantric Buddhism. The difference between the hindu Tantras and the Buddhist Tantras have also been outlined. The subsequent chapter study the Tantric trend in Buddhism, different aspects of Tantric Buddhism, some prominent siddhacaryas,Tantric literature, gods and goddesses and the impact of Tantric Buddhism on the literature and social life of the people of this soil.