The present Comprehensive English-Hindi Dictionary by Prof. RaghuVira is a supplementary volume to the earlier edition of 1955. It registers the Hindi equivalents of general and technical words of English pertaining to administration, industry, humanities, social sciences, natural sciences and technology. Prof. RaghuVira has given Hindi equivalents for two hundred thousand English words in this and the previous volume. Unknown to users are thousands of his words like the ones for Parliament, constitution, legislative assembly, legislation, legislator and so on. The Indian counterparts provided in this Dictionary, of hitherto nameless ideas of modern science in our languages will contribute to the enrichment of Indian languages so that they become vehicles of modern life and thought in its thousandsfold remifications. The creation of an Indian scientific terminology is a major contribution of the many-splendored activities of Prof. RaghuVira to develop Indian languages will also evolve into perfect instruments of expression. The present Dictionary is the only one that provides a precise a vocabulary for this development. It is a sine qua non for the study of modern Indian languages.