In this work, a novel nanocomposite was developed using polypyrrole (PPy), a well-known conducting polymer. The polymerization of pyrrole and the functionalization of multi-walled carbon nanotubes (MWCNTs) were carried out through an in-situ chemical method. Initially, the MWCNTs were functionalized using formaldehyde and potassium hydroxide solutions. The resulting PPy/MWCNT nanocomposite was characterized by X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), and Raman spectroscopy. The electrical properties of the synthesized composite were evaluated using the standard four-probe technique. Structural analyses from XRD, FTIR, and Raman studies confirmed both the successful polymerization of pyrrole and the formation of the PPy/MWCNT nanocomposite. Furthermore, DC electrical conductivity measurements revealed a sharp increase in conductivity, with conductivity values rising proportionally to the concentration of functionalized carbon nanotubes in the composite.