Data collection is very important for conducting a research or for any other purpose. The reason is that the data collection directly impacts the conclusions derived from the data. After data collection, the data is organized and analyzed. After analysis, the hypothesis are developed which are also proved or disapproved. After this the conclusions are developed on the basis of data analysis and recommendations are made. On the basis of conclusions, important decisions are made therefore, the accuracy, completeness and reliability of data is very important. And the only way to ensure the accuracy and other important features of data is by improving the data collection method. That is why data collection is considered very important.