It is a well-known fact that the quality of drinking water is essential/required to human beings. Quality of drinking water gives an idea about assurance for safety and prevention and control of water borne diseases. Inadequate quality of drinking water leading to water cause diseases due to the presence of dissolved chemical constituents in that water. In our country majority of the people depends upon ground water for their regular domestic needs as well as drinking water purposes at their respective places. So, a minimum knowledge is to be required/awareness in the people for their drinking water quality. Based on the importance of the drinking water quality to human beings, here a case study is taken up to review the available ground water quality in the districts of Andhra Pradesh. In this case study under review from the published work, a remarkable notice is identified, all most all researchers are done a work on the quality of ground water with limited physico chemical parameters like chloride, TDS, Total Hardness, Sulphates, TSS etc... in different areas in districts of Andhra Pradesh. Based on their limited research work, the researchers are drawn the conclusion about quality of drinking water. But a lot of scope is there to do in the analysis of other physico chemical parameters like heavy metals in these study areas. In this case study under review the above points are identified