In Pakistan, a large number of people are affected by the presence of heavy metals in groundwater as well as drinking water. Iron (Fe), copper (Cu), cadmium (Cd), chromium (Cr), lead (Pb), and especially arsenic (As) are the heavy metals present in higher quantities in water as compared to allowable limits by WHO and NEQS. With the advancement in the detection of these heavy metals and nanomaterials, they have been playing a vital role. Despite the many properties of nanomaterials, their high sensitivity, selectivity, effectivity, onsite detection portability, and low cost are important factors for selecting. Heavy metals, particularly arsenic, found in drinking water can be detected by metal oxide hybrid sensors even at low concentrations. In this research, nanomaterial, hybrid sensors are being designed to detect heavy metals at low concentrations. XRD, SEM, UV adsorption and other characterization techniques will be used.