  We explore the connection between low-scale CP-violating Dirac
phase~$(\delta)$ and high-scale leptogenesis in a Left-Right Symmetric Model
(LRSM) with scalar bidoublet and doublets. The fermion sector of the model is
extended with one sterile neutrino~$(S_L)$ per generation to implement a double
seesaw mechanism in the neutral fermion mass matrix. The double seesaw is
performed via the implementation of type-I seesaw twice. The first seesaw
facilitates the generation of Majorana mass term for heavy right-handed (RH)
neutrinos~$(N_R)$, and the light neutrino mass becomes linearly dependent on
$S_L$ mass in the second. In our framework, we have taken charge conjugation
($C$) as the discrete left-right (LR) symmetry. This choice assists in deriving
the Dirac neutrino mass matrix ($M_D$) in terms of the light and heavy RH
neutrino masses and light neutrino mixing matrix $U_{PMNS}$ (containing
$\delta$). We illustrate the viability of unflavored thermal leptogenesis via
the decay of RH neutrinos by using the obtained $M_D$ with the masses of RH
neutrinos as input parameters. A complete analysis of the Boltzmann equations
describing the asymmetry evolution is performed in the unflavored regime, and
it is shown that with or without Majorana phases, the CP-violating Dirac phase
is sufficient to produce the required asymmetry in the leptonic sector within
this framework for a given choice of input parameters. Finally, we comment on
the possibility of constraining our model with the current and near-future
oscillation experiments, which are aimed at refining the value of $\delta$.
