MANTRA, YANTRA, TANTRA & ACHOOK SADHNAYEIN is a spiritual and esoteric guide authored by Acharya Vijay Anand ‘Lohat’, published by Deep Publications, Agra and written primarily in Hindi/Sanskrit.The book explores the traditional concepts and practical applications of mantras, yantras and tantra, offering insight into ancient Indian spiritual practices and their relevance to seekers today.With approximately 168–176 pages, it presents a blend of theoretical knowledge and practical sadhanas aimed at both beginners and experienced practitioners.It serves as a resource for those interested in religion, mysticism and metaphysical techniques, combining philosophical explanations with actionable techniques.The book’s content reflects a deep engagement with traditional wisdom, making it suitable for students of Indian spirituality and those curious about the power of sacred sound (mantra), geometric tools (yantra), and ritual practices (tantra).