Rhythms in Proterozoic sedimentation, an example from Peninsular India presents the controversial subject about the cyclic phenomena in the earth's evolutionary history and their reflection in the development of Proterozoic basins, of which the 44,000 sq. km Cuddapah is an example. Based on the lithological infillings and its interpretation, a conclusion about the cyclic development is endeavored, especially through the signatures in the stratigraphic record of the basin. Salient aspects of research findings highlight Cudapah sedimentation, hydrocarbon possibilities, picrite borne mantle xenoliths, Proterozoic erg system, paleoseismicity and cyclic sedimentation and its significance in basinal evolution. The book will be useful to students, research workers and professionals in geology, who are interested in the problems of cyclicity in the earth' geological phenomena, the existence of which cannot longer be denied.