In the present study, changes in the average height over ages among women and men have been studied through third round National Family Health Survey data. It is also aimed to study the extent of influence of the different socioeconomic variables on such changes. The sample sizes for female and male are 94,417 and 52,460, respectively. For this study, only adult male and female data and the age ranges 20-49 years have been considered. During the 30 years span, the data set has been divided into three consecutive time periods with 10 years span for each period like (20-29), (30-39) and (40-49) years. Height has been considered as the dependent variable. The background explanatory variables are type of places, educational attainment, religion, ethnicity, occupational categories and wealth index of the families. The study shows that negative changes occur in the heights over the successive age-groups for men and women separately. The changes are found to be negative in all the zones and most of the states in India though it varies in its intensities. It is also an interesting feature to note that the maximum of absolute growth occurs among the men and women in urban areas, among the richest families, higher educated persons and professionals, while it is not so pronounced among the manual labourers, and scheduled tribes. Is it because of the changing lifestyles of most of the urban families and some of the rural families?