This book may help the intelligent inquisitive forerunners to have an overall grasp of today's faunal biodiversity status of the region covered under the districts of the Mahakaushal region. Man can live happily and hopefully in peace and comfort only if there is harmony between him and the environment. The spirit behind 'learning' is to receive with pleasure what is taught, to understand, to honor, and to make it one's own and to finally add to it. If the book in your hands can lead you to this cherished goal, you have reached the pinnacle and the author feels proud that his labor is aptly rewarded. When God has created this universe, He took every care to protect man from all the fronts including the dangerous ultraviolet radiation from the sun by spreading the Ozone layer between him and the sun. If miracles cannot be materialized by man, he should at least not trample on all the good that is provided to him already. This must be the wisest policy that every individual could propagate to the coming generation. This book will upgrade the awareness and knowledge of UG and PG students regarding biodiversity and its conservation.