Introduction:

The Census of Population is conducted by the government to collect data on the demographic, social, and economic characteristics of the population residing in the country. The data collected through the census is used by the government for policymaking, planning, and resource allocation. The data collected through the census is an example of secondary data.

What is Secondary Data:

Secondary data is the data that has been previously collected by someone else for a particular purpose and is now being used for a different purpose. In other words, secondary data is the data that is not collected directly from the source but is obtained from other sources that have collected it.

Data Contained in Census of Population:

The Census of Population collects a vast amount of data on the population residing in the country. Some of the data contained in the census includes:

1. Demographic Data: The census collects data on the age, sex, marital status, education, and occupation of the population.

2. Housing Data: The census collects data on the housing conditions of the population, such as the type of housing, the number of rooms, and the ownership status.

3. Economic Data: The census collects data on the employment status, occupation, and income of the population.

4. Social Data: The census collects data on the social characteristics of the population, such as religion, ethnicity, and language.

How is Census Data Secondary Data:

The data collected through the census is an example of secondary data because it is collected by the government for a specific purpose, which is to plan and allocate resources. The data collected through the census is then made available to the public and other researchers, who can use it for their own research purposes. As such, the data collected through the census is not collected directly from the source but is obtained from the government, which has collected it.

Conclusion:

In conclusion, the Census of Population is an example of secondary data that is collected by the government to plan and allocate resources. The data collected through the census includes demographic, housing, economic, and social data, which can be used by researchers for their own research purposes.

Secondary Data are those data which implies collection of data from some agency or institution which already happens to have collected the data through statistical surveys.
Census of India contain data regarding population size , economic activities, literacy, education , etc...
and these informations have been already collected for some other purpose . So it is called as Secondary Data .

Hope u understood..