Ans: To develop a meaningful and successful plan of any country, the different facts
of population should be available, such as total population and its regional
distribution, ratio of rural and urban population, growth rate, population per km,
education and educational ability and significant profession of the people etc are
on top. The process of obtaining these facts is called a census. Census is held
after every 10 years. The first census in Indo-Pak history was held in 1881. After
the creation of Pakistan, census has been held 6 times.