In the following subsections, we will first discuss the evolution of electronic structure and magnetic properties of AGNRH and ZGNRH in their ground state. Followed by a compre-hensive discussion on transport characteristics of pristine GNR (13AGNRH and 12ZGNRH), we discuss the plausibilty of ultilizing GNRs to induce spin-polarization effects. In the subsequent discussion, we will discuss how QI effects governs the spin-polarized electron transmission upon reducing width of ZGNR.