Imprints of an extended Chevallier-Polarski-Linder parametrization on
  the large scale of our universe
  In the present work we perform a systematic analysis of a new dark energy
parametrization and its various corrections at first and higher orders around
the presence epoch $z=0$, where the first order correction of this dark energy
parametrization recovers the known Chevallier-Polarski-Linder model. We have
considered up to the third order corrections of this parametrization and
investigate the models at the level of background and perturbations. The models
have been constrained using the latest astronomical datasets from a series of
potential astronomical data, such as the cosmic microwave background
observations, baryon acoustic oscillations measurements, recent Pantheon sample
of the supernova type Ia and the Hubble parameter measurements. From the
analyses we found that all parametrization favor the quintessential character
of the dark energy equation of state where the phantom crossing is marginally
allowed (within 68\% CL). Finally, we perform the Bayesian analysis using
\texttt{MCEvidence} to quantify the statistical deviations of the
parametrizations compared to the standard $\Lambda$CDM cosmology. The Bayesian
analysis reports that $\Lambda $CDM is favored over all the DE
parametrizations.
