The book gives complete details of Orchids in Eastern Ghats. Brief details of Eastern Ghats, its geology, soils, climate etc, have been given at the beginning. A bracketed key to the genera and key to the species have been given. It is followed by systematic enumeration. A total of 197 taxa belonging to 66 genera of Orchidaceae have been systematically enumerated. Under each species, Citation according to latest ICN, synonyms to connect to National and regional floras, type, etymology, detailed description, Flowering and fruiting season, habitat, distribution (World, India, Eastern Ghats) and specimens examined have been given. All the references about orchids of Eastern Ghats have been given at the end. The essence of this book is the coloured Photographs for all the species available in Eastern Ghats. Line diagrams have also been given for some species. Endemic and Threat categories have also been mentioned. Index to genera and species has been given at the end.