This volume includes the articles presented on the occasion of the Fourth National Conference on Ancient Sciences and Archaeology held from 21st to 22nd July, 2010 at Kongu Arts and Sciene College, Erode. Scholars from different parts of the country took part in the academic deliberations and presented papers on various topics of Ancient Sciences and Archaeology. It was aimed at the interactions of the scholars on different issues and the recent researches done in the field of Archaeology, Ancient Mathematics, Ancient Physics, Archaeological Chemistry, Ancient Medicine, Ancient Metallurgy, Ancient Engineering, Ancient Biology, Ancient Economics and Commerce, Epigraphy; Computer Analysis of Ancient Data, Science in Vedic literature, Sanskrit and other languages, literature, etc.