· Hauser and Duncan defined Demography as the study of the size, territorial distribution, and composition of population, changes therein, and the components of such changes.
· The first synchronous Census in India was conducted in 1881.
· Thereafter, censuses are being conducted at ten-year intervals.
· India’s growth in population remained very low till 1921. Until 1921, India was it’s first stage of demographic transition.
· The literacy rate was terribly low at 16 percent out of which female literacy accounted to 7 percent.
· The lack of public health system was a major drawback. There were outbreaks of water-borne and other fatal diseases. These diseases caused more illnesses and deaths. This led to an increase in the mortality rates.
· Infant mortality rate was 218 per thousand (at present, it is about 63 per thousand).
· The average life expectancy was only about 44 years.
· Agricultural Sector had the largest workforce i.e. about 70—75 percent. This sector was followed by the Service Sector at 15—20 percent, and the Manufacturing Sector at about 10 percent.
· India’s population growth can be classified into four distinct phases −
o Phase I, the period between 1901 and 1921: During this period, India experienced a fluctuating but more or less a stagnant growth in population. This period marked a high in both the birth and death rates.
o Phase II, the period between 1921 and 1951: This period witnessed a steady declining trend in population growth.
o Phase III, the period between 1951 and 1981: It was a rapid high growth period of population explosion in India.
o Phase IV, from 1981 to till date: India continues to grow in size. But, its pace of net addition is on the decrease.
· As per census 2011, 68.8 percent of the total population reside in villages and 31.2 percent reside in the urban areas.