Statefinder hierarchy of Kaniadakis holographic dark energy with composite null diagnostic

We investigate Kaniadakis holographic dark energy (KHDE) model taking the apparent horizon as the IR cutoff in a flat Friedmann-Lemaître-Robertson-Walker (FLRW) universe. We apply variant dark energy (DE) diagnostic tool to study KHDE model in flat universe with different values of the constant Formula: see text and Kaniadakis entropy parameter Formula: see text. We use the tools statefinder hierarchy Formula: see text, fractional growth parameter Formula: see text and composite null diagnostic (CND), which is blend of Formula: see text and Formula: see text. The evolution of trajectories of Formula: see text and Formula: see text depicts that there occur degeneracies in early time and also in the far future, whereas, in between these two extremes they are discriminated distinctly. The analysis of the present work shows that by the inclusion of fractional growth parameter Formula: see text with statefinder hierarchy (CND) degeneracy is removed reasonably, particularly more in the low redshift region.