While the onset of infant mortality was started in post-1921 but the onset of fertility decline was in 1965. Since then fertility in India has declined and the pace of decline has accelerated from 1980s and consequently the country is currently passing through the third stage of fertility transition. Hence statement 2 is incorrect . Demographic transition theory can be used to describe and predict the future population of any area. This theory tells us about three states of demographic transitory cycle. Hence statement 1 is incorrect .