Data collection is defined as the process of collecting, measuring and analyzing a particular investigated researched in-sight data using validated standard techniques. The researcher can judge his hypothesis on the basis of the collected data. In most cases, data collection is the most important and critical stage of the investigation, regardless of the area of investigation. The approach to data collection varies from region to region depending on the information required. The primary goal of data collection is to ensure that reliable, information-rich data is collected for statistical analysis, so that informed research decisions can be made.