Data orginally collected in the process of the investigation are known as primary data.
Example : The information regrading cost of living of people in a certain area collected by various agencies like 'NSS', 'NSSO'.
Methods of Collection of Primary Data :
Following methods may be used to collect the primary data.
a)Direct Personal Investigations.
b)Indirect Personal Investigation.
c)Mail Questionnaires.
d)Questionnaires Set Through The Enumerators.
