The Internet Archive is a major digital repository for free Hindi literature on Tantra, Mantra, and Yantra, offering various digitized manuscripts and modern publications in PDF format. These resources cover ancient Indian occult sciences, providing practitioners and researchers access to historically significant texts that were previously difficult to find. Key Tantra, Mantra, and Yantra Books in Hindi
A classic 1951 text focusing on the "Kalp" (systematic ritual) aspects of Yantras. Mantra Kirtana Yantra And Tantra Swami Jyotirmayananda The Internet Archive is a major digital repository
: A foundational 1951 text by Chandanmal Nagori focused on yantra preparation and mantra recitation Internet Archive Yantra Mantra Vidhi Mantra (मंत्र):
Yantra Mantra Kalp Sangrah : Nagori, Chandanmal : Free Download, Borrow, and Streaming : Internet Archive. Internet Archive Anubhut Yantra Tantara Mantra Hindi - Internet Archive Chandanmal : Free Download
Several collections and individual books on Hindi Tantra, Mantra, and Yantra are available for free PDF download on the Internet Archive. Below are some of the most notable "fixed" or comprehensive entries: Major Hindi Collections & Books Yantra, Mantra, Tantra Vidya