This twelve volume set represents the most recent & best available research in the evolution of Indian science & technology, c. 1500BC to the present. Each volume contains detailed essays by specialists in the field, & coverage focuses on one or more related topics: health & medicine (v.1); mathematics & astronomy (v.2); technology (v.3) science (v.4); science & technology (v.5); metals & metal technology (v.6); industries (v.7); coins, metallurgy (v.8); building construction (v.9); irrigation (v.10); geology (v.11); & environment & ecology (v.12). The fourth volume, for example, contains 22 essays (500pp. on scientific interaction with western civilization, evolution of science policy, modern techniques for studying Indian geological evolution, the role of women in Indian science, & theoretical issues (math, cosmology) & how they affected traditional scientific thinking & approaches. Volume six contains 16 essays on irgon technology, gem cutting, metallurgical tools. Each volume has a detailed, separate index. This cooperative project has involved dozens of western & Indian scholars, & the resulting reference work should be a standard source in the history of science for decades to come.History of Science and Technology in India, with ISBN 9788185067315 and ISBN 8185067317.