Abstract Introduction: The oldest and best-known demographic theory was formulated to explain the fertility decline that occurred in the West from the late nineteenth century through the 1930s (Davis 1945). Effects of Proper Knowledge of Contraceptive Measures on the Population Inflation: Several studies have focused on investigating whether such family planning programs play any role in decreasing fertility, or the decrease is reflected by the reduced demand for children driven by economic and social changes. The empirical results indicate that contraceptive knowledge significantly reduces fertility, whether fertility is measured as life-time fertility or the probability of giving birth. Besides, this paper found that mass media exposure and social networks play important roles in obtaining knowledge of modern contraceptive techniques. Women, who regularly watch TV, listen to the radio, or read newspapers and magazines are more likely to be exposed to contraceptive-related information and hence have more knowledge of contraceptives. Similarly, women who participate in women’s organizations are more likely to obtain contraceptive information through word-of-mouth. There is effect of contraceptive knowledge on fertility, and helps to shed new light on the relationship between knowledge and behavior. Conclusion: Proper Knowledge of Contraceptive Measures gives options and utilization of various contraceptive measures so the contraceptive acceptance and utilization is increasing day by day without hampering the socio cultural and other health related factors. So, the knowledge of contraceptive measures is definitely in a position to check the Population Inflation

Keywords: Proper Knowledge of Contraceptive Measures, Checking the Population Inflation.