Core-Shell nanostructures, a family of Nanomaterials have attracted increasing research interest due to their unique structural features that consist of an inner core and an external shell of different chemical compositions. Core-Shell nanostructures have exhibited improved physical and electrical, spectroscopic properties relative to their single-component counterparts. This paper describes the synthesis of TiO2 (core) / Polyaniline (shell) core-shell structured nanocomposites and characterization of the synthesized material. The morphological characterization is performed with XRD, SEM, DLS and Spectroscopic characterization is performed with FTIR, UV/Visible and ESR techniques. [ABSTRACT FROM AUTHOR]