UpMahavidhya Rahshya is a comprehensive hardcover spiritual text authored by Shri Rameshchandra Sharma “Mishra” and published by Mayuresh Prakashan in India.The book spans approximately 670+ pages and contains teachings in Hindi and Sanskrit, reflecting deep insights into the practices and meanings of Upamahavidya traditions.It explores mystical rituals, puja methods, prayers, and esoteric knowledge associated with the Upamahavidya path, blending classical wisdom with practical guidance for practitioners.Written in an engaging style, it serves as both a reference and devotional manual for students of Tantra, Vedanta, and traditional Hindu worship.Ideal for readers seeking to deepen their understanding of ancient Indian spiritual sciences and sacred secrets of divine feminine knowledge.