<p style="text-align:justify; margin-bottom:11px"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,&quot;sans-serif&quot;"><span lang="EN-US" style="font-size:12.0pt"><span style="line-height:150%"><span style="font-family:&quot;Times New Roman&quot;,&quot;serif&quot;">The present study obtained the Bio Earth sample from six locations, represented as LS-(1-6). The collected bio earth sample was blended with an adult earthworm (<i>Eisenia fetida</i>). The experimental investigation was conducted for 108 days, and earthworms showed maximum biomass and population ephemerality in Bio Earth samples (Bio Earth + cow dung). However, the pre-treated and post-treated samples were monitored through physicochemical analysis like pH, electrical conductivity (EC), bulk density (<i>ρ</i>), total organic content (TOC), total nitrogen (TN), total phosphorous (TP), total potassium (TK), C:N ratio, and heavy metals. Among the six Bio Earth samples, the most significant LS-3 reveals the reduction of operating parameters and finds the below detection limit of heavy metals. At the initial level of LS-3, samples were found to be pH-7.2, EC-1.4 ms/cm, <i>ρ</i>-0.8 g/cm<sup>3</sup>, TOC-8.6%, TN-0.6%, TP- 0.3%, TK-0.4%, C:N ratio-16.3%, heavy metals (Zn-448.8 mg/kg; Cu-132.5 mg/kg; Ni-61.4 mg/kg; Pb-91.2 mg/kg; Cr-116.3 mg/kg), whereas the post-treated vermicomposting sample results were exhibited at pH-6.8, EC-2.167 ms/cm, <i>ρ</i>-0.85 g/cm<sup>3</sup>, TOC-9.54%, TN-0.67%, TP-0.48%, TK-0.13%, C:N ratio-14.23%, heavy metals (Zn-64.13 mg/kg; Cu-5.5 mg/kg; Ni-7.26 mg/kg; Pb-101 mg/kg; Cr-51 mg/kg). The data displays that vermicomposting (using&nbsp;<em>E. fetida</em>) is an applicable technology for decomposing organic matter into prosperous nutrient soil enlargement.</span></span></span></span></span></span></p>