Fluctuation induced conductivity (FIC) analysis of (Au)y/CuTl-1223 (y = 0, 0.5, 1.0 and 1.5 wt. %) nanoparticles-superconductor composites was carried out via Aslamazov-Larkin (AL) and Lawrence-Doniach (LD) models in different fluctuation regions near and above the critical temperature Tc in the transition region. Different superconductivity parameters, like coherence length along c-axis (ξc), inter-layer coupling constant (J), phase relaxation time (τφ), Fermi velocity (VF), Fermi energy (EF), penetration depth (????p.d), critical magnetic field (Bc), lower critical magnetic field (Bc1), upper critical field Bc2 and critical current density (Jc) were calculated with the help of FIC analysis. Almost all these superconducting parameters were increased with the increasing concentration of Au nanoparticles in these composites. The enhancement in these parameters can be attributed to the conducting nature of Au nanoparticles (NPs) residing on the grain boundaries of the host CuTl-1223 superconducting matrix. The suppression of some critical parameters like Bc, Bc1 and Jc with the addition of Au NPs reflected the paramagnetic nature of Au NPs.