Assessment of some water quality parameters like conductivity, total dissolved solid (TDS) and pH are useful and important parameters to measure the salinity and pollution assessment of water. In this paper, studies pertaining to ground water quality were carried out in Agra, NCR of Delhi, to check water suitability for drinking and irrigation purpose. Water samples were collected from hand pumps, tap water and submersible pump and analyzed for pH, Total dissolved solids (TDS) and electrical conductivity. Electrical conductivity and TDS are directly proportional to each other (TDS = k EC, at 298K) for water samples and showing strong Correlation between EC and TDS. Estimated TDS/EC ratio in water samples indicates water quality and is always influenced by salinity. Therefore, periodical monitoring and analysis of water quality parameters and treatment of water resources in all the area require immediate attention for proper planning, framing strategies, effective policy and better management of water resources to improve water quality for sustaining healthy ecosystems in the area.