  We present the temporal and spectral study of blazar PKS 0208-512, using
recent flaring activity from November 2019 to March 2020, as detected by
Fermi-LAT, Swift-XRT/UVOT observatories. The source was in a low ${\gamma}$-ray
flux state for a decade and started flaring in November 2019, which continues
until March 2020. During the activity state, 2-days binned ${\gamma}$-ray
lightcurve shows multiple-peaks indicating sub-flares. To understand the
possible physical mechanisms behind flux enhancement, a detailed temporal and
spectral study has been carried out by dividing the activity into several
flux-states. Timing analysis of lightcurves suggests that peaks of sub-flares
have rise and decay time in days-order with flux-doubling time $\sim$ 2-days.
The 2-days binned ${\gamma}$-ray lightcurve shows double-lognormal flux
distribution. The broadband spectral energy distribution for three selected
flux states can be well fitted under synchrotron, synchrotron-self-Compton
(SSC) and external-Compton (EC) emission mechanisms. We obtained the physical
parameters of the source and their confidence intervals through
${\chi}^2$-statistics. Our spectral study suggests that during quiescent-state,
gamma-ray spectrum can be well explained by considering the EC-scattering of
IR-photons from the dusty-torus. However, gamma-ray spectra corresponding to
flares demand additional target photons from broad-line-region (BLR) along with
the IR. These suggest that during flares, the emission-region is close to the
edge of BLR, while for quiescent-state the emission-region is away from the
BLR. The best-fit results suggest that, marginal increase in the magnetic-field
can result in the flux enhancement. This is possibly associated with the
efficiency of particle acceleration during flaring-states as compared to
quiescent-state.
