In the process of conducting research, data collection is important stage. In general, collecting information related to the problem under research is called data collection. According to William Scott “information collected from observation or measurement from which attempts made to develop generation or conclusion is called “Data are divided into two types: 

1. Primary and 2. Secondary Data.

Primary Data is the information related to research collected by the researcher for the first time. This data is drawn from field study or from laborities. According for the specific purpose of solving a particular research problem”.

Primary data is original data collected by the researcher from field study. Primary or secondary data are collected through various tools or means. The major sources of primary data are :Observation., Interview, Questionnaire, Schedule and Social Survey.

Secondary data is collected by the researcher from different documents. According to Roberta on and Wright, “ Secondary data are those already recorded for some other purpose but used in research project “It includes Personal Documents, Public Documents, Books Periodicals, Abstracts, Bibliographies and Indexes, Office Statistics, Year Book, Encyclopedia, Directories and others.