THE Census 2001 highlighted the drastic decline in the male-female child sex ratio (number of females per 1,000 males in the population) in several states in north and west India, and the continued decline in major southern states. This is particularly so in 0-6 age group, in Punjab, Haryana, Himachal Pradesh and Chandigarh. In Punjab in this age group the figure is 793 girls per 1,000 boys; in Haryana it is 820; whereas in Rohtak it is 796. This should not be looked upon as something natural, nor has it happened suddenly.