Tantra is a complex and multifaceted spiritual tradition that originated in India over 1,000 years ago. The term "Tantra" refers to a collection of sacred texts, rituals, and practices that aim to unite the individual self (jiva) with the ultimate reality (Brahman). The Index of Tantra is a comprehensive catalog of Tantra-related texts, concepts, and practices. This report provides an overview of the Index of Tantra, its history, and its significance.