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Using Integral Field Unit (IFU) spectroscopy, we present here the spatiallyresolved morphologies of [SII]$\lambda$6717,6731/H$\alpha$ and[SII]$\lambda$6717,6731/[OIII]$\lambda$5007 emission line ratios for the firsttime in a Blueberry Lyman-$\alpha$ emitter (BBLAE) at z $\sim$ 0.047. Ourderived morphologies show that the extreme starburst region of the BBLAE,populated by young ($\leqslant$ 10 Myr), massive Wolf-Rayet stars, is[SII]-deficient, while the rest of the galaxy is [SII]-enhanced. We infer thatthe extreme starburst region is density-bounded (i.e., optically thin toionizing photons), and the rest of the galaxy is ionization-bounded $-$indicating a Blister-type morphology. We find that the previously reportedsmall escape fraction (10%) of Ly$\alpha$ photons is from our identifieddensity-bounded HII region of the BBLAE. This escape fraction is likelyconstrained by a porous dust distribution.  We further report a moderate correlation between [SII]-deficiency andinferred Lyman Continuum (LyC) escape fraction using a sample of confirmed LyCleakers studied in the literature, including the BBLAE studied here. Theobserved correlation also reveals its dependency on the stellar mass andgas-phase metallicity of the leaky galaxies. Finally, the future scope andimplications of our work are discussed in detail.

SDSS-IV MaNGA: an observational evidence of density bounded region in a Lyman-$\alpha$ emitter