Uddish Tantra Sadhna Avam Pryog by C.M. Srivastava, published by Manoj Publications, is a Hindi spiritual text that delves into the principles and practices of Uddish Tantra, blending traditional theory with practical rituals. The book explores tantric concepts of sadhana (spiritual practice) and prayog (application), emphasizing both saatvik (pure) and taamsik (transformative) methods attributed to Lord Shiva’s teachings. It provides guidance on guru–shishya tradition, ritual discipline, mantra usage, and procedures designed to help sincere practitioners deepen their spiritual understanding. The author discusses various tantric techniques in simple Hindi, with practical insights and references to traditional materials, making it accessible for dedicated seekers. With around 170–200 pages, this work serves as a resource for students of tantra, spiritual aspirants, and those interested in ancient Indian ritual science.