Synopsis While the matter for the book has been gathered from standard books, journals and newspapers, data have been selected from government publication 'India' and other such sources. The matter has been presented in an analytical style using central, side and running headings to make the subject easy to understand and remember. The language used is easy and free from technical jargon. In matters of discussion, integral and holistic approach has been adopted to give a balanced view. Selected questions drawn from university papers have been given at the end of each chapter to enable the students to prepare for examination. Thus, an attempt has been made to make this work an ideal textbook on the subject. It is hoped that the book would also be of great help to trainees, agriculturists and social workers.