In the book, various determinants of contraceptive behaviour have been studied across different geographical regions and cultural groups in Andhra Pradesh. They include socio-economic, demographic, cultural, ecological, health and other progress variables which influence contraceptive behaviours. The book is innovative because only a very negligible attempt is made, so far, to conduct a study of this type in India. It is also valuable for rationalising inputs and for making differential efforts on a scientific basis and to strengthen the family welfare programme among different diverse region and cultural groups all over the country. The book has revealed that at least ten major variables are related to Socio economic, demographic, cultural groups, modernisation, communication and health fields influence contraceptive behaviours among two cultural groups. The findings are unique in many respects and should have far-reaching theoretical, methodological policy in the population control programme implementation.'