The purpose of the current study is to assess the level of contamination of heavy metals and metalloids near an agricultural field and groundwater table in and around a thermal power plant in Ghanauli village of Rupnagar district, Punjab. The selected area is a large and very old coal-powered thermal power plant with 1260 MW of power generation capacity. Coal burning poses a high environmental pollution risk in India due to harmful heavy metals present in it which can lead to the contamination of agricultural lands and degrade their productivity and could pose a threat to water bodies by leaching into soil and then to nearby irrigation canals. Studies showed that the fly ash emissions from chimneys pollute areas of 3–5 km with heavy metals like Cd, Pb, Hg, Mn, Cu, Mo, and Zn, in trace amounts. The unsupervised dumping of burnt effluents from power-plant in the open fields or ash ponds/dykes leads to the leaching of harmful heavy metals into groundwater responsible for soil contamination. The study further is oriented towards the mitigation of heavy metal leaching by their immobilization in contaminated fields through enzyme-induced calcite precipitation (EICP) or microbially induced calcite precipitation (MICP), above processes are gaining popularity in the field of heavy metals immobilization and increasing soil stability and strength at appreciable level, but little has been carried out for field application. Energy dispersive X-ray spectroscopy and X-ray diffraction analysis revealed that traces of Pb, Hg, Cd, Cr, Mo (0.5–1% total combined) were found in the samples collected from power-plant surrounding 2–3 km of area and nearby to ash dykes. Whereas Fe and Zn was found in abundance due to their use in nearby agricultural fields as fertilizers. The study aims to develop and recommend methods for field application for the geotechnical challenge.