The census of India considers those areas as rural where the population is below 5000 and the density of population less then 400 per square Kilometer. It further provides that in such areas at least 75% of the males of the working population are engaged in agricultural pursuits.
It is important for the investigator to decide whether to use sample or census method for collecting data. The selection primarily depends upon the nature and extent of the enquiry and the degree of accuracy desired.
The Census is the enumeration of the inhabitants of a state taken by order of the Government (as desired by the legislature). It is conducted periodically, at the end of each ten-year.