Groundwater is the essential require in the earth without which life does not exist. The global goal of ensuring that human beings have access to acceptable quality water and sufficient quantity faces a number of challenges in the years to come. India has been facing gradually more serious water crisis in many portion of the country and many people’s are affecting different waterborne diseases due to consuming deteriorated water. So its needs to develop sustainably in order to meet the growing stress in its domestic, agricultural, and industrial sectors. Ground water is considered a daily essential property due to its use for drinking water, water systems and mechanical works. Groundwater has been the best and by volume a major version in relation to lifestyles. Water quality assessment was carried out by estimating the physico-chemical parameters of ground water (34) samples were collected from different sampling stations of Pachamalai hills. The results shows that all the samples are well within the permissible limits and fit for drinking and irrigation purposes.