This book is written from an interdisciplinary perspective combining material mainly from demography and sociology and reflects authors survey of literature from measurements and prediction to post-modern theory, along with planning issues in the country. Both the authors have studied the problem of population and urbanizations from diverse perspectives. Various theories of urbanization have also been discussed in the book. As far as possible, latest figures of world and national trends of urbanization have been included. Students may also use the detailed references given at the end of each chapter for going deeper into the subject and learn more about their research interests. In each chapter some important material is given in Boxes. Wherever needed, some lines are printed in bold to highlight a few major points.