This book deals Hindu Chemistry in a detailed manner. It starts with the Age of Nagarjuna and Buddhist Alchemical Tantras. How Buddhist Alchemical Tantras absorbed into Hindu Tantras has been discussed. Iatro-chemical period (c. 1350 A.D.)covers various topics such as Rasasara, Dhaturatnamala, etc. Modern period (1500-1600 A.D.)talks about Rasadipa, Rasakaumudi, Arkaprakasa, etc. Indigenous origin of Indian Alchemy is also an important topic in the book.